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Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights

Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights

Item # RM63MR
Our Price: $195.58
Tow Bar Wiring

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This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup. Great Prices for the best tow bar wiring from Roadmaster. Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights part number RM63MR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (13)
  • Q & A (0)
  • Photos

Roadmaster Tow Bar Wiring - RM63MR

  • Diode Kit
  • Splices into Vehicle Wiring
  • Universal
  • Roadmaster

This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup.


Features:

  • Complete wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system
  • Smart diodes ensure that your variable voltage, LED tail lights function as they should while your car's being towed
    • Converts the 12V signal from your RV's wiring to a 9V signal so your tail lights work as intended
    • Prevents electrical feedback that can damage your vehicle's electrical components
  • 7-Wire to 6-wire Flexo-Coil adapter cord lets you easily run power from your motorhome to your towed vehicle
    • Expands out to 8' to prevent dragging and tangling
    • Resistant to water, oil, and chemicals and has silicone-injected plugs to prevent corrosion
  • 6-Way socket wires to harness and mounts on towed car with included bracket
  • Powder coated aluminum casing on diodes is corrosion resistant and provides protection from the elements
  • Kit includes 2 smart diodes, wiring harness, split loom, ring terminals, zip ties, 7-wire to 6-wire adapter cord, 6-way socket with mounting bracket, and 10' of 14-gauge wire
  • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • Assembled in the USA


Specs:

  • Maximum amperage: 5 amps
  • Maximum voltage: 16 volts
  • Wiring harness length: 27'
  • 14-Gauge wire length: 10'
    • Maximum power rating: 60 volts
    • Operating temperature: 40 F to 176 F
  • Coiled cord max length: 8'
  • Coiled cord retracted length: 15"
  • Limited lifetime warranty


This complete smart diode wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system so that you'll have the signal lights necessary for flat towing your vehicle.


Because your vehicle has variable voltage tail lights, you cannot use a standard diode wiring kit to get these signal lights. If regular diodes are used on a vehicle that has variable voltage tail lights, the bulbs will light up as though the towed car is braking whenever the tail lights are on. In other words, there will be no difference between your vehicle's brake lights and running lights. This is because variable voltage tail lights use the same wire to power both the brake lights and tail lights. They do this by using a 12-volt signal for brake lights and a 9-volt signal for tail lights.


Smart diodes correctly modulate the 12-volt signal coming from your RV to activate only the intended circuit. The result is that your vehicle's tail lights will look and function as intended.


This wiring kit includes everything you need to hook up your motorhome's electrical to your towed car. It is designed to work with LED lights only. If your vehicle has incandescent lights, you'll need to use the smart diode kit designed for incandescent tail lights (RO94FR - sold separately) instead.


If your RV has separate tail light wiring, wherein the brake and turn signals run on separate wires, you'll need a wiring converter (RM-732 - sold separately) to complete this installation.


Smart Diode Wiring Diagram


152789 Roadmaster Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights

02427 14 Gauge Brown Primary Wire

146-7 Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit

Installation Details RM63MR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights - RM63MR

Average Customer Rating:  4.7 out of 5 stars   (13 Customer Reviews)

This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup.

by:

This product was exactly as described, and worked well to hook up the taillights in our towed vehicle. Thanks



by:

Product works but is a bit flimsy. Also, the connectors are an unusual size, 3/8 vs 1/4 inch, making it harder to purchase replacements if needed.



by:
2022 Jeep Cherokee

4 conductor wire was to short. I did not waste any wire and it was 6’ to short.

Etrailer Expert

Jenny N.

7/3/2023

It is unusual that the wiring would come up short. Would you be able to send a picture? How long was the wiring that you received?



by:

Customer Service was excellent - 5 STARS. The smart diodes are another matter. They are very poorly made. Connections had to be taped together in for them to stay together. They are inferior, cheaply made and will not crimp. Your instructional video was very good.



by:

Great company with excellent service.



by:

Awesome company & awesome customer serv ice



by:
2022 Jeep Cherokee



by:
2024 Jeep Wrangler 4xe



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2024 Jeep Wrangler Unlimited



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by:
2021 Chevrolet Silverado 3500


13
13

See what our Experts say about this Roadmaster Tow Bar Wiring

  • Recommended Base Plate and Flat Tow Parts for a 2023 Jeep Grand Cherokee L Overland
    The best baseplate for your 2023 Jeep Grand Cherokee L is going to be the Roadmaster Direct-Connect Base Plate Kit item # RM77ZR. I checked with Roadmaster and confirmed that this will fit the Overland model. This base plate kit has removable arms that will keep the front end of your Jeep as close to a factory look as possible. Please note that if you have tow hooks they must be removed to complete the installation. Some other parts you will need to flat tow your Grand Cherokee L are...
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  • Recommended Flat Towing Components For A 2023 Jeep Wrangler Sport
    For the baseplate you'll want the Roadmaster Direct-Connect Base Plate Kit # RM-521453-5, as long as your Sport has a standard factory bumper. For the tow bar the etrailer SD Non-Binding Tow Bar # e74ZR. this tow bar comes with safety cables bracketed to the arms so that you won't have to purchase them separately or worry about them dragging on the ground. For the wiring kit the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 you were looking at is a great option unless...
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  • Does Roadmaster Wiring Kit Include Charge Line for 2023 Jeep Cherokee Trailhawk
    The Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit # RM63MR does not include a charge line as part of the kit. In addition to this wiring you will also need the Roadmaster Battery Charge Line Kit # RM-156-25 for your 2023 Jeep Cherokee Trailhawk.
    view full answer...
  • Recommended Baseplate For A 2023 Jeep Wrangler Rubicon 392
    Per Roadmaster's fitguide, the Roadmaster Direct-Connect Base Plate Kit # RM-521453-5 would be a compatible fit for your 2023 Jeep Wrangler Rubicon with a 392 Hemi engine. If you haven't picked out the rest of your flat towing components then I have the following recommendations: Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety cables bracketed to the arms so you won't have to purchase them separately or worry about...
    view full answer...
  • Will The Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit Fit the 2022 Jeep Grand Cherokee WK & JL
    I can completely understand the confusion, but to make it easy, if you have the new body Jeep Grand Cherokee, then you have what is known as the Jeep WK and if you have the new body style it is known as the JL. I'm not entirely sure why Jeep does this, however the good news is the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights # RM63MR will work with both the old (WK) and new body (JL) style. If you interested in a complete set-up, let me know...
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  • Correct Tow Bar Wiring For 2022 Jeep Gladiator With LED Lights & ParkSense
    So a couple things here, as by blind spot indicators I believe you are referring to the ParkSense feature on your 2022 Jeep Gladiator. If so, you would not be able to use the Demco # DM9523010-54. The issue is that the brake and running lights will all be the same brightness with standard diodes. To avoid this, you'll need a Smart Diode kit from Roadmaster: - Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights # RM63MR The diodes in this kit convert...
    view full answer...
  • Will NSA ReadyBrake Work With etrailer Tow Bar and Roadmaster Base Plate on 2023 Jeep Wrangler Sport
    There shouldn't be any issues with that setup. The etrailer # e74ZR fits the Roadmaster Direct-Connect Base Plate Kit # RM-521453-5 and the NSA ReadyBrake is just a hitch insert so it will be compatible with any tow bar. The etrailer tow bar comes with safety cables so the only other thing you will need is wiring and possibly a high-low adapter. You can use the # RM-15267 unless you have the ParkSense feature in which case you would need the # RM63MR instead. For the high-low adapter...
    view full answer...
  • Can A Baseplate Be Installed In A 2023 Jeep Grand Cherokee Summit With Active Air Shutters
    The compatible baseplates for a 2023 Jeep Grand Cherokee do not have any tech listings against usage with active air shutters so there shouldn't be any interference. That being said most of the time if there is any interference you can simply trim the air shutters causing the interference and finish installing the baseplate. Before installing anything you should also verify your specific model is capable of being flat towed by looking up the recreational towing or dinghy towing section...
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  • Recommended Flat Towing Components For A 2023 Jeep Wrangler Rubicon 4XE
    For a 2023 Jeep Wrangler Rubicon 4XE I have the following flat towing component recommendations: Baseplate: The etrailer Invisible Base Plate Kit # e98948 you referenced would be a great option as long as you still have the factory plastic bumper. If you've swapped it out with an aftermarket option we'd have to verify with the manufacturer to ensure compatibility. Tow Bar: The etrailer SD Non-Binding Tow Bar # e34ZR would be the perfect tow bar to go along with the baseplate. It has...
    view full answer...
  • Base Plates For 2023 Jeep Gladiator Mojave With Demco Tow Bar
    We can get your 2023 Jeep Gladiator Mojave set up with base plates. Demco doesn't have base plates for the Mojave but you can still use your tow bar like the Commander # DM9511012, you'll just need an adapter to do so. For base plates and the adapter use the following: - Roadmaster Direct-Connect Base Plate Kit # RM77VR - Demco Tow Bar Adapter Kit for Roadmaster Direct-Connect Base Plates # DM9523032 This base plate kit is designed specifically for the Gladiator Mojave and the adapter...
    view full answer...
  • Recommended Roadmaster Base Plate Kit for a 2023 Jeep Gladiator Mojave
    I looked online and couldn't find a MOJAVI model so I am assuming that's a typo and you meant Mojave. With that in mind we have a couple of options for Roadmaster base plate kits for a 2023 Gladiator Mojave. The correct one for your set up will depend on whether your Roadmaster tow bar is a crossbar style or a direct connect style. If you're unsure go ahead and email me back with a couple of pictures, a name, or part number and I'll identify it for you. Crossbar Style Tow Bar - Roadmaster...
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  • Does The Steering Wheel Need To Be Free Or Locked While Towing A Jeep Grand Cherokee Trailhawk
    The steering will need to be free otherwise your wheels could lock and drag the when your motorhome makes a turn. If you haven't already picked out all of your flat towing components then I have the following recommendations: Baseplate: Roadmaster Direct-Connect Base Plate Kit # RM-521440-5. Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety cables included and has an adjustable head to help keep it level between...
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  • Second Vehicle Kit For Demco Air Force One For 2024 Jeep Wrangler JLU & Flat Tow Wiring
    Yep, we have both of those things for your 2024 Jeep Wrangler JLU. For the second vehicle kit for your Demco Air Force One # SM99243 you need the following part: - Second Vehicle Kit for Demco Air Force One Flat Tow Brake System # SM99209 Then for tow bar wiring, that will depend on if your '24 Wrangler has the optional ParkSense proximity sensors or not. - WITH ParkSense: Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights # RM63MR - WITHOUT ParkSense:...
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  • Recommended Baseplate For A 2022 Jeep Wrangler Rubicon
    For a 2022 Jeep Wrangler Rubicon you would be able to use the etrailer Invisible Base Plate Kit # e98948 that you were already looking at as long as you have a factory plastic bumper. If you don't let me know and we can see which baseplate fits with your bumper. To complete the physical connection to your motorhome you'll need the etrailer SD Non-Binding Tow Bar # e34ZR. This tow bar comes with safety cables bracketed to the arms so you won't have to worry at the For your lighting I...
    view full answer...
  • Is there a Base Plate Kit that Lets me Keep the Tow Hooks on a 2021 Jeep Grand Cherokee?
    No, the tow hooks come off no matter what brand of base plate you use. This is extremely common amongst SUVs and trucks with flat towing set ups. That's a solid anchor point and attaching a base plate there hides it extremely well. Here are the parts I recommend you use to set up a 2021 Grand Cherokee Limited 4x4 to be flat towed: Tow Bar and Safety Chains - Roadmaster Falcon 2 Tow Bar item # RM-520 and item # RM-643 Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable...
    view full answer...
  • Correct Flat Tow Wiring Harness For 2023 Jeep Grand Cherokee
    The correct flat tow wiring harness for your 2023 Jeep Grand Cherokee will depend on if you have the optional ParkSense proximity sensors or not, so you'll need one of the following: - WITH ParkSense: Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit # RM63MR - WITHOUT ParkSense: Roadmaster Diode 7-Wire to 6-Wire Wiring Kit # RM-15267
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  • Best Flat Tow Wiring Kit for a 2023 Jeep Gladiator
    The (discontinued) Tekonsha Tail Light Isolating Diode System TR118821 is a reliable kit but it isn't what I would recommend for your 2023 Jeep Gladiator because there are similar kits that are easy to install or are built much better than this one. For something that's easier to install we have the Curt Custom Tail Light Wiring Kit # C96JR which tees in behind the tai lights, but if you wanted something you splice in then I recommend one of the following from Roadmaster, depending on...
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  • Recommended Flat Towing Components For A 2023 Jeep Gladiator
    To flat tow your 2023 Jeep Gladiator you'll need the following components: Baseplate: Blue Ox Base Plate Kit # BLU53FR. Tow Bar: Blue Ox Avail Non-Binding Tow Bar # BX7420. This tow bar will also come with safety cables included so you won't have to purchase them separately. Tow Bar Wiring Kit: If your Gladiator has ParkSense Proximity Sensors then you'll need the Roadmaster Smart Diode Wiring Kit for Variable Voltage LED Tail Lights # RM63MR. If you do not have these sensors then...
    view full answer...
  • Recommended Flat Towing Components For A 2023 Jeep Gladiator Mojave
    To flat tow your 2023 Jeep Gladiator Mojave you'll need the following components: Baseplate: Roadmaster Direct-Connect Base Plate Kit # RM77VR. Tow Bar: Roadmaster BlackHawk 2 All-Terrain Non-Binding Tow Bar # RM-422. Tow Bar Wiring Kit: If your Gladiator has ParkSense Proximity Sensors then you'll need the Roadmaster Smart Diode Wiring Kit for Variable Voltage LED Tail Lights # RM63MR. If you do not have these sensors then you can just use a standard wiring kit like part # RM-15267....
    view full answer...
  • Recommended Flat Towing Components For A 2023 Jeep Grand Cherokee Summit
    I've listed out the parts you'll need to flat tow your 2023 Jeep Grand Cherokee Summit below but you'll want to also check with your local dealer for wiring harness information if your vehicle needs the MOPAR RV towing wiring harness kit #82216418AA. Baseplate: Roadmaster Direct-Connect Base Plate Kit # RM76RR. This is confirmed by Roadmaster to fit Summit models. Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety...
    view full answer...
  • Can Flat Towing Components From A 2016 Subaru Impreza Be Transferred To A 2023 Jeep Wrangler 4xe
    You won't be able to transfer over the baseplate but you will be able to reuse the tow bar and a majority of the Demco Stay-In-Play # SM99251. You'll just need the reinstall kit # SM6270 and the Roadmaster Stop Light Switch Kit # RM23MR for your braking signal to be able to swap the system over to the Wrangler. To be able to use the Blue Ox tow bar you'll want to use install the Blue Ox Base Plate Kit # BX1139 that you were already looking at. You'll also need a tail light wiring kit...
    view full answer...
  • Recommended Flat Towing Components For A 2021 Jeep Wrangler Unlimited
    To flat tow a vehicle you'll need to have a tow bar, baseplate, tow bar wiring kit, braking system, and safety cables. For your 2021 Jeep Wrangler Unlimited I have the following recommendations along with a Blue Ox baseplate: Baseplate: Blue Ox Base Plate Kit # BX1139. This will fit standard factory bumpers, if you have something else we'll need to check for compatibility. Tow Bar: etrailer SD Non-Binding Tow Bar for Blue Ox Base Plates # e47ZR. This tow bar comes with safety cables...
    view full answer...
  • Recommended Baseplate For A 2023 Jeep Grand Cherokee 4xe With Roadmaster Falcon 5250 Tow Bar
    Hey Michael, The Falcon 5250 has direct-connect attachment points that hook onto a crossbar, if you remove the crossbar adapter then you'll be able to go with a direct-connect baseplate like the # RM77ZR (models with tow hooks) or # RM76RR (models without tow hooks). If you haven't picked out the rest of your setup then I have the following recommendations: Tow Bar Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This diode kit will splice into your factory...
    view full answer...
  • Recommended Tow Bar Wiring Kit For A 2024 Jeep Wrangler
    We have exactly what you need. For flat tow wiring for a 2024 Jeep Wrangler I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This kit includes the coiled cable to connect to the RV 7-way, as well as a 6-pin round plug for the front of the jeep, and all of the wiring components you will need for the vehicle. It is important to note that the aforementioned Diode kit is not recommended for vehicles with the ParkSense proximity sensors; those models should...
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
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Expert Research:
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