Recommended Wiring Harness for a 2020 Jeep Wrangler Unlimited Rubicon
Updated 09/08/2025 | Published 06/14/2025
Products Featured in This Question
Question:
Can you use the roadmaster 4 diode wiring kit on a 2020 jeep unlimited rubicon with the led lights package
asked by: Tkw
Expert Reply:
Yes, you 100% can. The Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles item # RM-15267 is exactly what you'll want to use for LED lights on a 2020 Jeep Wrangler Unlimited Rubicon. This kit comes the umbilical cable, connectors, and all of the necessary wiring and diodes you'll need to control your Jeep's lights through your RV.
Here are the rest of the parts you'll need to flat tow your 2020 Jeep Wrangler Unlimited Rubicon:
Tow Bar and Safety Chains - etrailer SD Non-Binding Tow Bar - RV Mount - 2" Hitch - 6,000 lbs item # e34ZR
Base Plate Kit - etrailer Invisible Base Plate Kit - Removable Arms item # e44FV
Brake Light Switch - Roadmaster Brake-Lite Relay Kit for Towed Vehicles item # RM-88400
Supplemental Braking System - SMI Stay-IN-Play DUO Supplemental Braking System item # SM99251 or item # SM99243 if your motorhome has air brakes
High Low Adapter - The tow bar needs to be within 3" of level. If you measure the height of the inside top of the hitch receiver tube on your RV, and the height difference is more than 3 inches above/below the base plate tab height, you'll need a high/low adapter. I have linked a FAQ article that explains all this in more detail along with our selection of adapters.
What kind of motorhome are you using? You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
Product Page this Question was Asked From
Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord
- Flat Tow Wiring Harness
- Splices into Vehicle Wiring
- Diode Kit
- Universal Fit
- 7 Blade to 6 Round
- Roadmaster
more information >
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on Flat Tow Wiring Harness
Jerred H.
9/8/2025
Hey, did the Roadmaster 4-Diode Wiring Kit work well with your Jeep's LED lights? I'm asking because your experience could be really helpful for others looking to set up their towing system.