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Roadmaster/
Diode Kit/
Splices into Vehicle Wiring/
Universal/
Tail Light MountItem # RM-154
Retail:$94.64
Our Price: $72.95
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Diode Kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. 4-Pole flat loop included to connect RV to towed car.
Features:
Specs:
Note: For applications that have separate lighting, this kit will cause your brake lights to function as both brake and turn lights. Wiring converter kit (154-792-118158) can be purchased instead if you want to retain separate turn and brake signals.
2010 - 2020 Ram 1500
2019 - 2019 Ram 1500 Classic
2011 - 2011 Mazda 2
2012 - 2014 Chrysler 200
1995 - 1997 Nissan 200SX
1989 - 1989 Nissan 240SX
2010 - 2019 Ram 2500
1980 - 1983 Datsun 280ZX
2004 - 2013 Mazda 3
1993 - 2003 BMW 3 Series
1991 - 1996 Mitsubishi 3000GT
2007 - 2007 Chrysler 300C
1999 - 2004 Chrysler 300M
1984 - 1984 Datsun 300ZX
1990 - 1994 Mazda 323
2010 - 2019 Ram 3500
2013 - 2018 Nissan 370z
1984 - 2019 Toyota 4Runner
2006 - 2012 Mazda 5
2012 - 2019 Fiat 500
2014 - 2016 Fiat 500L
2006 - 2008 Mazda 6
1983 - 1989 Dodge 600
1986 - 1997 Mazda 626
1993 - 1994 Oldsmobile 88
2007 - 2019 GMC Acadia
2017 - 2017 GMC Acadia Limited
1995 - 2020 Hyundai Accent
1990 - 1995 Plymouth Acclaim
1981 - 2020 Honda Accord
See All Vehicle FitsVideo of Roadmaster Universal Hy-Power Diode Wiring Kit
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Average Customer Rating: 4.7 out of 5 stars (212 Customer Reviews)
Diode Kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. 4-Pole flat loop included to connect RV to towed car.Installation on 2018 Kia Soul 486230
I haven't installed this yet. But I know etrailer video will be of great help. 165408
So so had trouble with the connecters unplugging from the deodes. Not enough slack on my part
dave t - 12/12/2015Received wiring within 3 days, included instructions and resource phone #s for help if needed. We will use them again when needed. 152248
Great. No problems.
JOANNE B - 09/20/2015As always great customer service and delivery. I would highly recommend e trailer for all towing needs, and other products they sell. 206606
I got rid of a dolly to go with towbar, best thing Ive done so much easier to hook up and unhook than a dolly. Great product and great customer service cant beat that plus great prices.
William D - 06/22/2016
Although I am commenting on this product, I actually would like to comment on the following products. I purchased a brake system, tow bar, base plates and wire harness from etrailer. All of my orders were filled in a timely manner. When I reached out for technical assistance, the advisors were readily accessible. All of the products were installed by me. All of the products were very easy to install by using the video and instructions. 337853
I have not installed it yet but think it will be ok for what I am l needing. 223019
Works like a charm. Was very easy to install and would buy another one if I ever need one down the road.
wiring k - 08/30/2016This isn't the first time I've installed a wiring harness and this one was a nice one (I thought). But I am having problems with the right light (both brake and running light). I've tried calling and talking to your customer support with no answer! I've found if I turn on my lights, at least the running lights all work (but not the brake light or turn signal). I'm thinking it's a grounding problem, but haven't been able to fix it so may have to try someone else's wiring harness. 608773
If you click the provided link below, you can see an install video showing this wiring harness system being installed on a 2015 Jeep Cherokee. If you continue to have problems, please call our Customer Service folks at 800-298-8924.
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Mike L - 02/28/2019I installed the wiring harness yesterday and it took about 4 hours. Thats actually 4 hours of work, in reality it was more like 6 hours but most of the time was trying to figure out how to route the wiring which is not the fault of the harness. Everything worked as advertised with no gotchya's or any issues which was really surprising. I installed it on a 2009 Smart fortwo Passion which I am towing behind my motorhome. My advice for anyone using this is take your time, read the directions carefully before you start and follow them step by step and you should have no issues. 281855
Weve put about 15,000 miles on the MHcar since installing the wiring harness and have no issues what so ever which when towing is a very welcome relief. I am very happy with your product and would highly recommend it.
Dave V - 12/12/2017Received ahead of projected delivery da te 573204
I used this for a Jeep Wrangler, probably one of the easier applications. etrailer cautions us to ensure the ground is proper, and I can confirm this. While I found the proper wires using voltage, the gound I used had too much resistance to allow for proper functioning. It took several hours to track it down. But no doubt, when the electical system gives what appears to be impossible data, it is always the ground. I hooked to the proper ground and it works like a charm. I do recommend using heat shrink tubing on the spade connectors. Also I mounted the four flat connector to the bumper. Curt brackets do not fit the connectors in this package without serious modifications. 192669
Work as discribed. The first time for me to use the universal kit and was a little worried about the outcome but I followed the instructions and it works great. The hardest part was routing the wire around the front end area. Wire was just enough, I recommend starting at the front end and route the wire on the passenger side. This is the side of the motorhomes 7 pin plug. Remember to stay away from the exhaust (on most trucks as mine is a Chevy 1500). Product was received within 3 days of purchase which works for me. I give Etrailer 2 thumps up for great service once again. 511182
everything went well except i was told that i did not need the brake relay kit and i do. We got it wired ready to leave to go back home and found out we did need the brake relay and when i called to order it they were out of stock so delayed our trip. 540131
Installation was relatively straightforward, and the necessary parts were included in the kit. The installation is not technically difficult, but gaining access to some the wiring was somewhat irritating because of the assembly techniques used in modern vehicles. Be prepared for somewhat tedious digging around to get to the wires, and pull enough slack to work with them. Once again, a few extra plastic automotive fasteners and automotive cable fasteners came in handy. They're available at a decent hardware store or Home Depot-like store. 63823
A bit disappointed to be truthful. This is a generic wiring kit with diodes and wire, not Jeep specific. I am totally qualified to install and did without any problems, pretty much had to figure out the color codes myself for the JEEP lights. The real issue is the lack of any wiring for the license plate lights, required in California and pretty sure nationwide. This is a challenge that is not addressed in the kit. I had to pull access panels off, find and trace the wires, install my own diodes and wire as none are provided for this light in the kit. The basic kit is nice but the lack of provisions for the license plate light are a real drawback and not easily solved. 584025
Great experience, quick shipping, excellent video and instructional references to go along with the products. I did the installation of the product myself and without the text and instructional video's there is no way I would have been 100% successful. These are the extra value add things that make the difference when shopping with etrailer, I will be a return customer. I am using this product with my 2016 Jeep Wrangler towed by a 2014 Fleetwood Bounder motorhome. 339287
Great product. Works fine. 729513
Easy hookup. A year of near daily use, about 80,000 miles towing, and never an issue with this wiring setup. 728996
Easy install on Jeep JL 2dr sport. 727980
Product wroked great, installed easily, excellent customer service from Etrailer 725054
Install was very easy except for the short wires on my Jeep, which is not the fault of this product. I ended up about 2 feet short when I ran the wiring to the other tail light, added some wire I had in the garage to complete the project. The directions did say to cut one end off but leave 3 feet of wire to be used on the motorhome, that's where I came out short. Tested after install and everything works fine. Now I have a clean. Professional look with my tow vehicle and don't need those magnet mounted lights any more 720865
Item came very quickly, in good shape, and just as advertised. 718530
Just what I needed for my 2001 chevy 2500 so I could pull behind my motor home. Thank you 718367
Customer service is 100 percent. Olivia knew about everything I needed and reminded me of something I forgot I needed. She shipped my parts overnight and they were on my porch first thing this morning. I will ALWAYS recommend etrailer to anyone that ask. 715011
Great product and easy to install. Still working great 714615
exactly what I ordered and super fast s hipping! 713845
A great product from a retailer who provides great installation videos! You can't go wrong with etrailer! 703994
Easy order. Fast delivery. Rigging up a toad. Pictures to come.......... Maybe. 696732
Great product used it for over a year and was very easy to install 683937
Easy install on 2017 rubicon. Used on a previous tow vehicle and wanted to use again as the previous one worked flawlessly behind motorhome. E trailer makes the selection for product fit very easy and for me has made the whole process seamless. Videos are very helpful and accurate. 683800
The Roadmaster Tow Bar Wiring I purchased works great and was reasonably easy to install on my 2012 Dodge Ram 3500. It is a great product at a decent price and I would highly recommend it. Thanks guys. 683235
Good prouct. 682692
Quick delivery even with regular ups Much better than [competing brands] three ring circus There just missing elephants to parade around the parking lot I’ll you know how everything works out Thanks Barry Carmichael 682420
I installed the kit today. It came as advertised. Good product and would buy it again. 671992
Great product! follow the video & instructions and it’s easy. 671590
Ms Lisa D has helped me fining the correct parts needed for my tow bar installation, and she been very courteous and extremely friendly. 671466
Fast shipping and great directions on line Etrailer is our super store 669033
Great product worked very well. I hear shrinked all connections including the connections at the diodes. I had a corrosion issue with a previous install. Everything worked with no issues. 666669
I installed all the products that were purchased from etrailer.com with the assistance of the videos. It was helpful and it saved me from having to pay someone to do the work for me. etrailer.com is a great website to purchase all one's needs for towing equipment. Thank You 665681
This is the second time I've bought products to flat tow a truck behind our motor home .Parts came within 3 days of ordering ,everything in good order should work out as before, good instructions, parts look good, great company excellent to work with, easy to get a hold of for help with questions. 665175
Wire kit has been working good for a year now. 659226
Great kit to wire up your brake lights for flat towing. 658120
Great to set up my braking system for flat towing. 659223
Fantastic to work with and product arrived when it was expected. Thanks so much 641601
Everything is doing very good. 635112
I understand the newest system incorporates a relay for the brake light- turn signal override issue. I wish I had it instead of the one I installed, which required more work and is more complex in design and install. 620203
Thank you great service 610029
Product / service ....meets expectation s. 607132
Arrived on time well packed. Would do business with again. 603781
Works perfectly. Easy installation and clear instructions. 601322
Great knowledgable assistance great price fast shipping thanks to lori 592369
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