Tow Bar Wiring

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Roadmaster

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Diode Kit

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Splices into Vehicle Wiring

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Universal

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Tail Light Mount

Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting

Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting

Item # 154-792-118158

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Our Price: $143.84

Tow Bar Wiring

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Tow Bar Wiring 154-792-118158 - Universal - Roadmaster
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Connect your towed car's lighting system to your RV's to get the brake lights and turn signals required for towing. Designed for use with vehicles that have separate brake and turn signals. 4-Pole flat loop and wiring converter included. Lowest Prices for the best tow bar wiring from Roadmaster. Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting part number 154-792-118158 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Roadmaster Tow Bar Wiring - 154-792-118158

  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal
  • Tail Light Mount

Connect your towed car's lighting system to your RV's to get the brake lights and turn signals required for towing. Designed for use with vehicles that have separate brake and turn signals. 4-Pole flat loop and wiring converter included.


Features:

  • Connects your RV's tail, brake and turn signal lights to your towed vehicle's lighting system
    • Designed for use on towed vehicles that have a 3-wire system (separate brake and turn signals)
  • Prevents electrical feedback and the damage it can cause to your towed car's electrical components
  • Includes tail light converter to adapt your RV's 2-wire system (combined brake and turn signals) to work with the towed car's 3-wire system
  • Contains everything you need to wire your car for flat towing
    • 6 Hy-Power diodes
    • Tail light converter
    • 30' Long strand of 4-wire electrical cord
    • 6' Long cord with 4-way flat connectors - both vehicle and RV ends
    • Ring terminal and wire connectors
    • 3' Long split-wire loom


Specs:

  • Max amperage: 85 amps
  • Max voltage: 24 V


Note: If your RV has separate brake and turn signal lights, you do not need to install the included tail light converter. However, you will need to replace the 4-way vehicle-side connector with one that is capable of carrying the separate signals.


The diagram below shows the installation of the 6-diode tail light wiring kit on a towed vehicle (or dinghy) that has separate turn signals (typically amber) and red brake lights. This kit will most often be used with a motor home that operates off of a 2-wire system wherein the brake lights do the flashing for the turn signals. The included tail light converter (118158) is used to convert the combined brake and turn signal lights to separate ones to match those of your towed vehicle.


Six-Diode Kit



154 and 792 Roadmaster Universal Wiring Kit with 6 Hy-Power Diodes and 118158 Tow Ready Tail Light Converter



154-792-118158 Installation InstructionsInstallation Details 154-792-118158 Installation instructions

This Product Fits The Following Vehicles

1995 - 1997 Nissan 200SX

1989 - 1989 Nissan 240SX

1980 - 1983 Datsun 280ZX

1993 - 2003 BMW 3 Series

1991 - 1996 Mitsubishi 3000GT

2007 - 2007 Chrysler 300C

1999 - 2004 Chrysler 300M

1984 - 1984 Datsun 300ZX

2013 - 2018 Nissan 370z

1984 - 2019 Toyota 4Runner

2012 - 2019 Fiat 500

2014 - 2015 Fiat 500L

1983 - 1989 Dodge 600

1993 - 1994 Oldsmobile 88

1995 - 2020 Hyundai Accent

1990 - 1995 Plymouth Acclaim

1981 - 2020 Honda Accord

1992 - 1998 Oldsmobile Achieva

2002 - 2007 Suzuki Aerio

1986 - 1997 Ford Aerostar

1999 - 2004 Oldsmobile Alero

1993 - 2012 Nissan Altima

1989 - 2000 Isuzu Amigo

1980 - 1989 Dodge Aries

2011 - 2012 Nissan Armada

2003 - 2008 Isuzu Ascender

1994 - 1997 Ford Aspire

1985 - 2005 Chevrolet Astro

2007 - 2009 Saturn Aura

1995 - 2002 Oldsmobile Aurora

See All Vehicle Fits



Video of Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster 6-Diode Universal Wiring Kit Installation - 2008 Honda Fit

All right, today on a 2008 Honda Fit we're going to install part number 154-792-118158. This is a Roadmaster 6 Diode Universal Wiring Kit for towed vehicles with separate lighting. To start of, let's go ahead and open the back hatch. Now we're going to remove and loosen some interior components. First off, our floor covering for our spare tire, we're just going to scoot that forward. Now we need to go ahead and remove our threshold. It's a good idea to peel back on the weather strip just a little bit, and using a trim panel tool, pop it loose.

Now the panels behind the tail lights we'll go ahead and remove as well. All right, we're going to loosen up this panel here, and we'll go ahead and remove this screw. This pulls back pretty easy. Now we just need working room to run our wires, you don't want to really completely remove it. We're done with our driver's side, let's go ahead and do the same thing on our passenger side. Okay, now we've got our vehicle ready to install our wiring. Okay, now when we do wiring on a vehicle that's getting towed behind a vehicle, every time we put electrical or power into the system we need to use a diode.

Now we'll go ahead and find the circuits we need to use and install our diodes first. All right, to help us find the wire initially, we'll just turn on the running lights and you can see how the socket glows in the background, so for running light circuit, we know that this bundle of wires is what we need. We'll go ahead and remove the loom from our wire so we can work with it. Now we've got easy access to the wires. We'll use a light tester to verify which wire it is. We'll take our tester and ground to the latch, and we'll go ahead and check to see which wire.

So it looks like a red wire with a black stripe and silver bands is going to be our running light circuit. So we're going to cut this in half, add some terminals to each end, and then install our diode. Here's our diode, and here's the terminals that come with it. We'll go ahead and remove the terminals from the diode and then go ahead and put them on the wires, okay Now we'll go ahead and put a diode in place. Now it's labeled input and output. So the input will be from our vehicle into one of these tabs here, and then our output always goes towards our tail light. Of course this is the unit that goes to the tail light.

And then we've got one more tab for input, that will be fed in from our RV, when it tows it, but we'll leave that one alone for now, okay Now we'll go ahead and look for our brake signal, and we'll basically do the same thing. All right, now we'll just temporarily push it back into place and we'll look for our brake signal. So it looks like our brake signal circuit is going to be white, with a black stripe and silver bands. Just like before we'll go ahead and add a diode. Just like before, our input from our car, back to our tail light. Now for this set of wires we'll go ahead and mark them. "B" for brake, and this is our running lights, so they'll be, running light, "RL". We'll set those aside for now. Now we'll go ahead and look for our turn signal. All right, we'll go ahead and do the same thing, we'll see which wire we need for turn signal. It looks like for our turn signal it's going to be green, with a red stripe and silver bands. Okay, just like before, our output will go to out, and one of our inputs. All right, we'll make this one left turn. Now basically we're done with our driver side, we're going to repeat the same process over on our passenger side. One more time, let's go ahead and look for our running lights circuit. Now we're going to sneak out our wire harness from the back side to get easier access to it. So for our running light on the passenger side, will be red, black stripe, and silver bands. Once again, out to our tail light, and either input, it doesn't matter. Let's go ahead and mark this one for running light circuit for passenger side. All right, now let's go look for our brake signal on passenger side, and it looks like white, with a black stripe and silver bands. All right, out to our tail light, and input. All right, now well go ahead and look for right turn signal, and again we'll go ahead and turn it on and look for a socket to glow and then we'll go ahead and pull it out. It looks like our right turn signal is going to be green with a yellow stripe. Output, and input. Our next part is to go ahead and install this component here. This is the input that will be coming from our RV so we'll be working with this side for output going to the car and the cars wiring harness. These will all go out to our diodes. We'll go ahead and start off our first wire, which will be our easiest one. This will be left turn signal. We'll go ahead and put a terminal on it. So we're going to go ahead and run our wire underneath the plastic to our diode, and we will simply connect that to our input on our left turn signal. Next up is our red wire. This is for our stop light, and we'll go ahead and follow that around as well. Okay, this will go to our brake light, so we'll run it to the input there. Now we have our brake wire going over to our driver side, we also need to run this over to our passenger side, so we're going to get an extra length of wire. We use a quick splice connection to attach to our red wire, and then go across to the other side of the car. Now we'll be using part number 34466000-5 This part number has 5 of these splices and it should be more than enough. We'll take a quick splice connector, attach it to the wire we're going to tap off of, take our new wire that we're going to extend it with, put it right next to it, and just squeeze it together. Occasionally you'll mess one up, so it's a good idea to get some extra terminals in case you mess up. We'll take this end of the wire and attach it to our brake signal on the passenger side. Now since the terminals are unprotected, let's add some electrical tape, just to give it and extra layer. Next we'll go ahead and work with our green wire. It's a little short so we'll extend it as well. We'll use another piece of scrap wire, and we use a butt connector, part number 05731-5. That added plenty of length to it. Then we'll go ahead and add our terminal to it. So we'll go ahead and hide this behind our plastic and go up to our turn signal. Input for right turn. All right, just to recap what we've got so far, we've got our left turn signal, our brake signal, and our right turn signal. Now we're also going to need running lights. Now running lights aren't included in this module, that will be part of the wiring harness that goes up towards the front of the car. So, to do that, we're going to need to make a running light circuit. We're going to run it from our running light circuit on one side, and we're going to run it over to the other side, so we'll have a wire going for both diodes for both tail lights, and then just like we did on our red wire, we use a quick splice connector, and that will supply our running lights circuit. Okay, a quick idea is this role of wire is what we're going to use to connect up to the front of our vehicle. Now this has more than enough length than we need, and plus, we need to cut off one end, so the rest of this wire can be used as our extension for our green and brown wires. So one end we're just not going to need, so we're just going to cut it off. It might be a good idea to keep the cap for future reference. So let's go ahead ahead and take some of our wire, enough where we can go from each end, and then some, and we'll just cut off what we need. Well need our brown wire. We'll go ahead and add a terminal. This will go to our passenger side. Okay, and our other end will go to our running light diode here. When you notice, when you get with the diode kit, when you get one of these terminals that's extra big. The idea is you put one of these two brown wires into it and it makes the junction. We could easily do that, but we're using a quick splice connector so you can see it our in the open. We'll just use a smaller one since we don't need to use our yellow one for a junction. We're almost done with the back of our vehicle. Let's take a few moments and go ahead and reinstall our wiring that goes in back of the tail light. This end will go to our wires in the back right here, and we need to run it to the outside, however the grommet we are going to use, the hole isn't big enough to accommodate this, so we're going to go from underneath and run this up through back to our wiring, and this will stay on the outside. To do that, there's a grommet on the driver's side, from underneath we'll have to get access to. All right, now if you look underneath the vehicle, you'll see this piece of sheet metal right here, okay If you look on this edge and feel towards the top, you can find a grommet. Just pull it out, and we'll make a slit in it, and then we'll go ahead and run our wire through it. Let's go ahead and take this and put this back into the body, then into the inside. We'll go ahead and feel for a little opening and go ahead and just push our wires in, a nice healthy chunk of it to make sure we can find it on the inside, then reinstall the grommet. We can pull out the wire, and let's go ahead and run it behind our plastic, okay We'll go ahead and split our wires and get it ready to work with. We'll split our wires up. Remember that brown wire I was talking about a few minutes ago Let's go ahead and make our connection. This is our wire that went from left to right, and now this new wire we're adding to it, will supply the power. Okay, so now, on our wire harness, three wires left: right turn, left turn, and our ground. Get the ground out of the way, we'll leave that for the last. So at this point we need to connect them up to our input for our module, so it's going to be a simple color for color. We'll use the yellow butt connectors that came with the kit with the diodes for this. Okay, this will be from the RV and into our module. Now let's go ahead and deal with our white wires or ground. For our white wires we'll use a couple ring terminals, part number Dw05702-1, and we'll go ahead and use a self-tapping screw to attach to the sheet metal right here. It's a good idea to use the sheet metal that overlaps so you have plenty of material to dig into. All right, now all of our electrical connections are done at the back of the vehicle, we'll leave all the interior pieces open, so that way we can, after we test it, we don't have to tear it all apart again, in case something's amiss. Now let's go underneath the vehicle and run our wires from the back to the front. When we do that we want to stay away from anything moving, like suspension components, and anything hot like the exhaust, and going up front we want to stay away from the steering components as well. We'll lower this panel and let it go ahead and hold up our wire for us. We went underneath the bottom of the car, and reached in and pulled out our wire from the grill, where we have plenty of it left over. In this case, you can see how we came down here and zip tied as we needed to go towards the front. We ran it behind some plastic holders and shields to help hold up our wire and just followed some existing lines all the way toward the front. We've got our wire routed up to the front of the vehicle. We'll go ahead and take some extra steps to run it the way we want it. I want mine over the base plate a little bit, and then we'll take our extra and just bundle it up, just make sure we leave enough for reasonably easy access to our forepull 00:17:22. All right, now when we're not using it, typically our wiring harness can just sit back in the grill here, just tucked away, and when we need to use it, just pull it out. So now, we've got everything ran and electric connected, let's go ahead and apply some power to it and make sure it works. First we'll go ahead and try our running light circuit. Now we'll go ahead and try our left turn circuit. Okay, now our right turn circuit, and then our brake circuit. We've verified everything's working, let's go ahead and put the rest of the vehicle back together. Take a moment to take our module and attach it to the sheet metal by the spare tire. Okay, we'll take adhesive and we'll go ahead and put this into place, and then we'll simply take our wires and secure them out of the way. Okay, now one thing we did on here is, actually, we kept our zip ties a little bit on the loose side so when we put our cover back in place, they'll all press down, because it's going to be a really tight fit. We try to stay the same thickness as the factory wiring. Okay, and with that, that will finish it for our install of part number 154-792-118158 on our 2008 Honda Fit. .


Customer Reviews

Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting - 154-792-118158

Average Customer Rating:  4.8 out of 5 stars   (40 Customer Reviews)

Connect your towed car's lighting system to your RV's to get the brake lights and turn signals required for towing. Designed for use with vehicles that have separate brake and turn signals. 4-Pole flat loop and wiring converter included.

- 154-792-118158
by:
Toyota Tacoma

I used the wiring harness on my Tacoma pickup in preparing to tow it behind our 40’ motorhome. The harness went on easily from the front grill to the rear lights, where I soldered and heat wrapped each connection. The instructions were ample and easy to follow. It’s been a year since the installation, and the wiring has worked flawlessly! 472891



- 154-792-118158
by:
2013 Honda CR-V

Prompt deliver of product. We haven't gotten this part of our project installed, we are still watching YouTube videos and other info on procedure. Had very little difficulties installing base plate on our 2013 CRV this should go well also. Our lights are a little more complicated but once we figure out how to actually wire to them every thing we've learned so far is very straight forward. 93187


Comments

So far, so good. Weve only towed the car one way from KS to Fl. Everything working great. Thinking about adding a receiver hitch but, will take it to the dealer as we sold our farm, and our tools and have the grandsons arent available to do the hard work.

Jerry B - 02/02/2015

9208

- 154-792-118158
by:
Honda

I bought this wiring kit because I wanted to wire my 2013 Honda CRV myself. E-Trailer has a video that is helpful in its installation . What I later found out was you need to route the wires through some covers underneath the vehicle and unless you have some means to raise the vehicle pretty high that routing will be difficult. I went to the Honda dealer and several other auto places and no one would install this kit for me because of liability reasons so now I have a product of question. I ended up at a friends garage who had a lift and we routed the wire from side to side and from front to back in about 20 minutes. Once secured in place I took the car home to finish the diode installation. Using the video it was easy to install. The only problem I had was putting the rear tai lights back in. You will need the separate the diodes as the space between the body and light housing is very close. Other than that everything worked out well. 260502



- 154-792-118158
by:
Subaru Outback Wagon

In ordering the parts I got a little confused as to exactly which kit I needed. My motorhome has combined brake/turn signal lights & the car ('03 Subaru Outback) has separate brake/turn/parking lights. Thought I needed the 6 diode kit (which I ordered) until I had all the parts here & read through the instructions for the umpteenth time (BEFORE cutting anything) & then realized what they were doing. Turns out all I needed was the 4 diode kit. Sounds like there won't be any problems returning the unneeded parts since they were never installed. Great service there! Took a lot apart in the back of the car because of the lack of space behind the tail light assemblies, but it all comes apart pretty easily. Also allowed me to route the wiring along side the stock harness. Have a bunch of 1/2" split loom here & used it. Thought I would have lots of wire left over, but I actually had to splice 2 cut offs to make a jumper long enough to get from 1 side of the car to the other. Glad the car wasn't any longer & I didn't have to make up 2 jumpers as with some of the kits! Hardest part was finding a hole in the firewall & getting the harness routed under the dash so as to not tangle with the pedals, etc. I just don't flex like I used to. Everything works fine although it was NOT a "5 minute job". 180912



- 154-792-118158
by:
Honda Civic

The Roadmaster Wiring Harness was installed easily by our mechanic and works perfectly with our Civic and RV. I'm certain we will use etrailer.com for our new dinghy towing requirements! 674670



- 154-792-118158
by:
2017 Fiat 500X

I was amazed that the items I ordered on Saturday afternoon arrived so quickly. Great service. Now waiting for a nice weekend to install all my items. 613396



- 154-792-118158
by:
Ford

I ordered a towbar and accessories through the Internet site. It was very easy and also very informative. The supplies were ordered and I receive them in a couple of days. It was a great price and I did much research before I ordered. We are planning to install the towbar on our Ford C-Max and tow it with our phoenix cruiser 3100. 613179



- 154-792-118158
by:

Good product had everything I needed. 567961



- 154-792-118158
by:

Works perfectly and made for a nice clean install. Would definitely use again on my next tow car. 526901



- 154-792-118158
by:
2016 Honda HR-V

Great Product from roadster, easy insta ll! 503202



- 154-792-118158
by:
2016 Ford C-Max

Kit works as advertised. Just completed an 8,000 mile trip with no problems. 502770



- 154-792-118158
by:
2002 Honda Accord

Greg was very knowledgeable, and was able to pin point the product that I needed. I am currently on vacation and the product is working fine. Greg also has a great personality and it was a pleasure to deal with him over the phone. 493430



- 154-792-118158
by:
2012 Ford Five Hundred

I used this wiring kit on a 2012 Fiat 500 Sport. All of the components worked as advertised and I am really pleased with the result. I used the 6 diode kit so the FIAT's turn signals would work the same when it's being towed as when it is driven. This was my first light wiring kit installation and it was quite a challenge on the small FIAT to fish the flat cable from the rear of the car to the front. I ran it along the drivers side - over the rear wheel well, along the rocker panel, and up over the front wheel well. The wheel wells were the most difficult part of the job. Running the cable from driver's side to passenger side along the rear bumper and running it from the front wheel well to the front of the car and installing a connector were straightforward. One problem I ran into is the female disconnect terminals supplied with the kit that are used to connect wires to the diodes anticipated a thicker wire (16-14 AWG) than what the FIAT uses. A quick trip to a close by big box store was all that was needed to find the same connectors for a thinner gauge wire (22-18 AWG). You still use the supplied disconnect terminals with the flat cable connections to the diodes. 484735



- 154-792-118158
by:

Adam E did a great job in helping pick the correct items for an upcoming project.... Great communication even after the purchase was made.... Wish all purchases were this easy.... 467656



- 154-792-118158
by:
2010 Suzuki Grand Vitara

A great product. Installed easily. Previous wiring experience would be good for somebody wanting to use this. It has performed flawlessly over the past year. I’d recommend it. 446837


Comments

Fantastic. No problems at all. Works as required every time I plug in.

David - 10/28/2018

45142

- 154-792-118158
by:
2013 Ford C-Max

I watched the video link that was provided and had no trouble installing the harness. Works great! 413520



- 154-792-118158
by:
2015 Fiat 500

The kit contained all you need to wire lights on a Fiat. The instructions were clear and concise. Excellent product and service as usual for etrailer. 383843


Comments

After one year this kit is still doing its job flawlessly.

Ron B - 05/25/2018

38900

- 154-792-118158
by:
2015 Ford Edge

Great product easy instructions 381249



- 154-792-118158
by:

Nice set up. Instructions were spot on. The hardest part of the installation was removing car interior panels to get to the wiring. Would definitely recommend this product. 360002



- 154-792-118158
by:

Ellen was outstanding. Very informative and knowledgable. I would recommend her advice and etrailer.com to all my friends. * 352078



- 154-792-118158
by:

Works great 332660



- 154-792-118158
by:

Customer service was the best. Product delivered as expected. I recommend this wiring package. My towing safety comes first and Etrailer delivered. 326069



- 154-792-118158
by:

The wiring works great, I got more in the KIT than I could possible use and I am sure I had to pay for the extras, but I got what I needed and am very happy. 314873


Comments

it is doing great

ALEX A - 11/08/2017

30646

- 154-792-118158
by:
2005 Subaru Forester

I did a lot of research before buying. etrailer's prices and support are above average. I ordered the Roadmaster 913-1 baseplate, Falcon-2 towbar and 154 universal lighting kit. I was completely surprised by the fast shipping, all parts arrived 3 days before I expected AND the shipping was free! Before I ordered I talked with etrailer support to ensure I ordered the correct parts. They were knowledgeable and helpful. 314075



- 154-792-118158
by:

Everything was in the kit. It was simple to install 289442



- 154-792-118158
by:
2010 Kia Soul

Pretty darn quick on the shipping. Easy instructions, 2010 KIA Soul easy install, lots of spare space for the diodes and splitter box. Had all the wiring installed, tested in just under 2 hours. 272700



- 154-792-118158
by:
2014 Fiat 500

a little bit hard to get all wiring in, because I want the wiring not to be apparent and not exposed to harsh weather( snow, salt ,etc). But this setup is ideal, works perfectly and very quick when you connect your car the the motorhome. 271868



- 154-792-118158
by:
2001 Honda Odyssey

I had questions and was called back very quickly, everything resolved and shipment came the next day. very friendly staff and the music is good. thanks Etrailer 259893



- 154-792-118158
by:
2007 Toyota Corolla

Installation went as designed. Worked the first time with no problems. No problems since. Can't ask for more. 259190



- 154-792-118158
by:
2006 GMC Envoy

It was as described. The free shipping can be slow using USPS but it got here. 252888



- 154-792-118158
by:

This is my second purchase of wiring kit for towed vehicle I have bought from Etrailer. I had some questions and Etrailer was able to answer every question I had. I will go back to Etrailer next time I need products such as this. 248792



- 154-792-118158
by:
2008 Honda Fit

Very complete, hi quality, reasonably priced kit for lighting my "toad". If you have combined lights on your RV and separate lights (brake and turn) on your "toad", this is the kit. 215033



- 154-792-118158
by:

Product arrived on time.Online videos very well done.Katie D. provided excellent customer service on all the parts ordered. 201238


Comments

very happy with product still working without any problems

wayne s - 06/11/2016

18525

- 154-792-118158
by:
2000 Saturn S Series

installed in 1 1/2 hrs works great tha nks 155181



- 154-792-118158
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2013 Chevrolet Sonic

I found the product to be of very high guality. I did not supply pictures as I would need to remove my taillights again. I had to covert a motor home that did not have separate turn signals to a Sonic that did. The materials supplied allowed me to just that. I do have two other comments-The instructions showed the wires on the car on the passenger side which is opposite from the Sonic and most others I would think. I had to reverse my thinking to do the correct procedure. Also, could you not supply unit specific instructions if the towing vehicle lighting arrangement and the towed vehicle was identified. This would eliminate the extra parts that I did not need and help the customer complete the task. Other than that, very good product. I guess it is better to have extra parts ratter than not having enough but I just thought this might cut the cost for some applications. 139352



- 154-792-118158
by:

They wiring kit was just what we needed for our application. It works really well and seems good quality. 134234



- 154-792-118158
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2013 Chevrolet Silverado

This product worked well with the 2013 silverado I installed it on. The customer is happy so am I. 132343



- 154-792-118158
by:

I PUT YOUR PRODUCT 154-792-11858 ON MY 1988 SUZUKISAMURIA AND IT WORKED GREAT. I WENT WITH OPTION 2, MORE WORK BUT WORKED GREAT. THANK YOU VERY MUCH. 92269



- 154-792-118158
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Chevrolet Volt

The diodes and wiring are good and worked well. But the 118158 converter produced a 3.5 volt drop such that the brake lights were as dim as the tail lights. And when a turn signal was triggered the brake lights dimmed even further. I ended up stringing a separate brake wire through the car and re-wiring my truck with a 5-wire connector. 68855



- 154-792-118158
by:
2012 Kia Sportage

This harness was an excellent choice. It took about an hour and fifteen minutes to install. Everything is spelled out for you in the instructions and if all else fails, watch the online video. The hardest thing was removing the tail light on the Sportage. I has a ball joint connection that forces you to pull harder than you think you should. I was afraid I would break the light. But it popped out and the rest was easy. Very complete and works great! The connections fit like factory. Very Pleased. 42472


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Ask the Experts about this Roadmaster Tow Bar Wiring

Do you have a question about this Tow Bar Wiring?


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  • How to Connect Diode Wiring Kit for Flat Towing a 2005 Jeep Grand Cherokee
  • Yes, you would just wire the green and yellow stop/turn brake circuits from the Roadmaster Universal Hy-Power Diode Wiring Kit # RM-154 to your brake lights on your 2004 Jeep Grand Cherokee. If you want to utilize your amber turn signals on your Jeep while flat towing you can use the Wiring Kit # 154-792-118158 instead which comes with a converter and the extra diodes you need to separate your brake and turn signals. I have attached photos of both wiring options for you to reference.
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  • Are Roadmaster Kit Diodes and Wiring Converter for Isolated Stop Lamp Available Individually?
  • The Vehicle to Vehicle Tail Light Converter # 118158 is absolutely available apart from the Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting # 154-792-118158. Then for the additional diodes you need beyond what you currently have you will use the Roadmaster Hy-Power Diode - (Qty 1) # RM-790 or package of 2 # RM-792. The prices are on each product summary linked or on the individual product pages.
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  • Parts Needed to Flat Tow a 1998 Jeep Grand Cherokee
  • Since your 1998 Jeep Grand Cherokee has the Neutral position you can flat tow it. To flat tow your Grand Cherokee you will need a Base Plate Kit, Tow Bar, Safety Cables, Tail Light Wiring Kit, a Supplemental Braking system, and you also might need a High-Low Adapter. The base plate kit that I recommend is the Roadmaster XL Base Plate Kit # 1411-2. The great thing about this kit is that is has removable arms which will give the front of your Jeep more of an OEM look when you are not...
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  • Wiring Instructions for SMI Stay-IN-Play DUO on 2008 Jeep Liberty
  • The SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 referenced in your question does not require separate brake and turn signals to operate properly. However, if you want to use the separate turn signals on your 2008 Jeep Liberty, then I recommend installing the Roadmaster 6-Diode Universal Wiring Kit # 154-792-118158 to connect the Jeep's lighting system to your RV's. To let the Jeep's system operate the brake lights, the red wire coming from the converter on this wiring kit...
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  • Wiring Diagram for Installing 3-Wire Style Diode Tow Bar Wiring Kit
  • I attached a diagram for the 3 wire install of the Roadmaster kit part # 154-792-118158 which can be used as a guide for installing the part # TR118821 as well.
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  • Recommended Setup to Flat Tow a 2017 Cruze Hatchback Manual Transmission
  • Unless the 3rd brake light on your 2017 Chevrolet Cruze is activated by one of your side tail lights, the Roadmaster 6-Diode Universal Wiring Kit # 154-792-118158 will only activate the tail lights on the left and right side of your Cruze. I have attached a video of this kit being installed on a 2014 Ford C-Max that you can use as a reference. As for the fuses, I took a look at the online version of your manual and saw that if you are flat towing the Cruze with the manual transmission...
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  • Do The Towed Vehicle's Turns Signals Get Used With the Roadmaster Hy-Power Diode Kit
  • The Roadmaster Universal Hy-Power Diode Wiring Kit part # RM-154 will use the brake light bulb to display both the brake and turn signal circuits. The turn signal bulb will then not be used while the vehicle is in tow but it would still work as normal while driving the vehicle. That said, if you want to use the turn signal bulbs on the vehicle while in tow all you need to do is use the Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting part # 154-792-118158...
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  • Components Needed To Flat-Tow 1993 Mazda Miata Behind Motorhome
  • You sure can flat-tow your 1993 Miata behind your motorhome. Since we only offer Roadmaster base plates for your vehicle you have a couple options. I recommend the Roadmaster XL Base Plate Kit, part # 711-4. If you decide you want to go with the Blue Ox Alpha Tow Bar, part # BX7365, you will need the RoadMaster Base Plate to Blue Ox Tow Bars Adapter, part # RM-033. Then you will need the Roadmaster Tow Bar Quick Disconnect Kit, part # RM-201. If you decide this is too many components...
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  • Parts Needed to Flat Tow a 2017 Mini Cooper 2-Door S Model Behind an RV
  • In addition to the base plates # RM-521882-5 for you 2017 Mini Cooper 2-door S model you will need a compatible tow bar, safety cables, lighting, and supplemental braking. For a tow bar I recommend the Falcon 2 # RM-520. It is the most popular compatible tow bar and I have linked a video review of it for you. For safety cables use # RM-643. The coiled design helps keep the cables off of the ground. For lighting the recommended kit for your Cooper is the 6-diode kit # 154-792-118158...
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  • Wiring Harness Needed to Tow 1999 Mazda Miata Behind RV
  • In order to connect the lighting system on your 1999 Mazda Miata to your RV's and get the brake lights and turn signals required for towing, you will need Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles, # 154-792-118158. I have attached an article that covers the five basic components required to flat tow. Before getting the Miata set-up, I do recommend checking your owner's manual for flat towing compatibility and any restrictions or special instructions that they may have. The...
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  • Parts Needed to Flat Tow a 2015 Ford C-Max Behind a Motor Home
  • To flat tow your 2015 Ford C-Max behind your RV you will need base plates, a compatible tow bar, safety cables, lighting, and supplemental braking. Starting with base plates I recommend the Blue Ox base plates # BX2639. Out installers have said the Blue Ox base plates are easier to install than other brands. For a compatible tow bar I recommend the Alpha, # BX7365. It is rated for up to 6,500 pounds and includes safety cables so you will not need to add any additional safety cables....
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  • Parts Needed to Flat Tow a 2011 Ford Explorer Behind a Motor Home
  • You should not have to drill new holes in your 2011 Ford Explorer to install base plates # 4427-1A. But there are some holes that will need to be enlarged, a bracket that will have to be modified, and some fascia trimming to complete the installation. I have included a link to the installation instructions for you to view. In addition to the base plates you will also need a compatible tow bar, safety cables, lighting, and supplemental braking. For a tow bar I recommend the Falcon 2,...
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  • 2 Wire to 3 Wire Tow Vehicle Taillight Adapter for 2006 Chevrolet Colorado
  • You definitely can use the 4 diodes you purchased, # 48955, to wire your 2006 Chevrolet Colorado to be towed behind your Motorhome. Along with the connector you purchased and the diodes you will need an appropriate length of Bonded 4 Wire, # 16-4B-1. I would recommend about 30 feet. When wiring the taillights your brake and turn signal will use the same filament in the brake light bulb with a 4 diode kit. I have added a wiring diagram for you to make the process easier. To eliminate...
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  • Parts needed to Flat Tow a 2004 Toyota Tacoma Behind an RV and Does Skid Shield Get Removed
  • Looking at the instructions for the Blue Ox base plates for the 2004 Toyota Tacoma ( # BX3728 for 4-wheel drive models or 2-wheel drive Prerunner models and # BX3744 for 2-wheel drive, non-Prerunner models) the factory skid shield is not removed. I have linked the instructions for you to view. For a compatible tow bar I recommend the Alpha, # BX7365. It is rated for 6,500 pounds and it comes with safety cables. For lighting you could use the EZ mount kit # EZT20B or, for a more permanent...
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  • Parts Needed to Flat Tow a 2015 Mini Cooper Behind an RV
  • I will be happy to help you get the parts needed to flat tow your 2015 Mini Cooper behind your motor home. The first thing you will need is base plates. For your 2015 Mini Cooper use # RM-521884-5 if it's a Base model or # RM-521882-5 if it's an S model. I have linked the install details for both of them. Next you will need a compatible tow bar. The tow bar I recommend the most is the Sterling, # RM-576. This tow bar does include another item you will need, safety cables. I have linked...
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  • Flat Towing Wiring Harness Options for 2012 Fiat 500
  • There are two ways you could wire your Fiat 500 for flat towing. In scenario # 1, you could use a 4 diode kit like # RM-15247 which would use your tail lights as stop/turn/brake lamps. Your lights would work normally when actually driving the Fiat, but when you're flat towing, you'd only use the red bulb on the back of the Fiat for all the taillight functions. Scenario # 2, if you wanted the taillights on the Fiat to operate 'normally', that is to have the turn signals use the amber...
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  • What Parts are Needed to Tow a 2000 Honda Accord with a 37 ft Fleetwood Bounder Motor home
  • Whenever setting up a towing system, read and follow the guidelines listed in the emergency towing section of your owners manual. The five items you need to safely tow a 2000 Honda Accord behind your 2000 Fleetwood Bounder 37 ft. motor home are base plates for your Honda, a compatible tow bar, safety cables, lighting and a supplemental braking system. The base plate for your Honda is the Roadmaster XL # 1545-1. This base plate has removable arms that can be stored away when not in...
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  • Parts Needed to Flat Tow a 2013 Ford Explorer
  • We have everything you need to flat tow your new 2013 Ford Explorer with your 2009 Winnebago Chalet. Before we get into the parts that you will need, I recommend checking your owners manual for any restrictions or limitations for flat towing your Explorer. I did some research on your vehicle and the Explorer can be flat towed, but Ford may have specific procedures and restrictions for flat towing that will be listed in your owners manual. There are 5 items that you will need to complete...
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  • Parts Needed to Flat Tow a 2008 Honda Fit Behind a Motor Home
  • I found an online copy of the 2008 Honda Fit owners manual and on page 173 it states that the vehicle can be towed behind a motor home up to 65 miles per hour. It then lists the procedures for automatic and manual transmissions in the pages after that. Confirm this with your owners manual. There are at least 5 items you will need to flat tow your Fit: base plates, tow bar, safety cables, lighting, and supplemental braking. The base plates provide a proper and safe attachment point on...
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  • Recommended Roadmaster Base Plate For 2013 Fiat 500 Abarth And Other Flat Towing Recommendations
  • For your 2013 Fiat 500 Abarth, the Roadmaster base plate kit you are seeking is the Roadmaster EZ2 Base Plate Kit - Removable Arms, # 522013-1A. This is a confirmed fit for your vehicle. I recommend using Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube, # LT37420, when installing. If you need recommendations for the rest of your towing system, I've listed compatible parts for you. For a tow bar, I recommend the Roadmaster Falcon All Terrain, Non-Binding...
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  • Parts Needed to Flat Tow a 2008 Jeep Liberty
  • The Blue Ox Base Plate kit part # BX1976 that you referenced is the correct base plate kit for your wife's 2008 Jeep Liberty. It sounds like your Liberty may have the rock guard or skid plate, which this kit will replace once installed. For a compatible tow bar I recommend the Alpha, # BX7365. It comes with safety cables and it is rated for 6,500 pounds. If you are looking for a more economical option you can use the Adventurer, # BX7322, but it does not come with safety cables and...
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  • Adapter for Use of Demco Aluminator Tow Bar with Roadmaster Base Plates for 2014 Jeep Cherokee
  • Yes, we have base plates that are compatible with the Demco Aluminator Tow Bar. All you need is the Roadmaster Tow Bar Adapter # RM-032. This will then allow you to install the Roadmaster EZ4 Base Plate Kit # RM-521447-4 on the 2014 Jeep Cherokee Latitude so that it can be flat towed. Keep in mind that a complete flat towing setup includes the Tow Bar and Base Plates, Safety Cables, Vehicle Tow Bar Wiring, a Supplemental Braking System, and possibly a High-Low adapter depending on the...
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  • Parts Needed to Flat Tow a 2012 Honda CR-V Behind a Motor Home
  • I will be happy to help you with the parts you will need to start the next chapter in your lives. There are at least 5 things you will need to flat tow your 2012 Honda CR-V: base plates, tow bar, safety cables, lighting, and supplemental braking. For base plates the most popular option are the Roadmaster EZ4 base plates # RM-521567-4. I have linked a video showing how these base plates install. For a compatible tow bar the most popular option is the Falcon 2 # RM-520. I have linked...
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  • Is a Brake Light Relay Needed with an Even Brake System on a 2011 Ford Edge
  • Your assumptions about the braking system on the 2011 Ford Edge are correct. An active braking system, also called a continuous power assist system, is different than what is on your vehicle. You can use the Even Brake # RM-9400 with the 2011 Ford Edge. You should not need a brake light relay if you are using a 6-diode kit that uses the vehicle wiring, # 154-792-118158. If you are using a 4-diode kit or any kit that plugs in line with the vehicle wiring then the brake light relay is...
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  • Parts Needed to Flat Tow a 2003 Chevy Tracker behind a Motor Home
  • You will need to look up a 2003 Chevy Tracker because Geo ended in 1997. For a 2003 Chevy Tracker you can use the Demco kit # DM9518079. For a compatible tow bar I recommend the Demco Commander # DM9511010. It is rated for 6,000 pounds and also includes another item you will need, safety cables. I have included a link to the installation instructions for you to view. Next you will need a lighting solution. If you will not be towing the Tracker very often I recommend a magnetic kit...
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  • Parts Needed to Flat Tow a 2001 Chevy Tracker Behind a Motor Home
  • I found a copy of the owners manual online for the 2001 Chevy Tracker and found that you can flat tow it (see section 4-44 in the owners manual). There are specific procedures outlined in the manual that you will need to follow. There are at least 5 items you will need to flat tow the Tracker. First you will need base plates like # 1012-1. The base plates provide a safe and secure attachment point for the tow bar, which is the next item you will need. For a compatible tow bar I recommend...
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