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  1. Flat Tow Wiring Harness
  2. Volkswagen
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  4. 2016
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FITS 2016 Volkswagen Jetta
Demco 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles - 7-Way to 6-Way Adapter Cord
Demco

Demco 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles - 7-Way to 6-Way Adapter Cord

Part Number: DM9523010-54
In Stock
$212.67
Flat Tow Wiring Harness
Confirmed to Fit
2016 Volkswagen Jetta

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Demco flat tow wiring harness for your 2016 Volkswagen Jetta are available from etrailer.com. Installation instructions and reviews for your Volkswagen flat tow wiring harness. Expert service, and great flat tow wiring harness prices. etrailer.com carries a complete line of Demco products. Order your Demco 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles - 7-Way to 6-Way Adapter Cord part number DM9523010-54 online at etrailer.com or call 1-800-940-8924 for expert service.
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2016 Volkswagen Jetta - Demco 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles - 7-Way to 6-Way Adapter Cord

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

This complete kit includes everything you need to correctly display your RV's brake and turn signals on your Volkswagen Jetta tail lights. Includes coiled 7-way to 6-way adapter cable and 6-way car-side socket.


Features:

  • Diodes display your RV's brake and turn signals on your towed vehicle's tail lights
    • Prevents feedback that can damage your vehicle's electrical components
    • Resists corrosion with heat-sealed casing
  • 7-Wire to 6-wire adapter cable lets you easily run power from your motorhome to your towed vehicle
    • Coiled to prevent dragging and tangling
    • Resistant to wear and tear with durable vinyl coating
  • 6-Way socket hardwires to towed car and mounts on the front bumper
  • Kit includes:
    • 4 Diodes
    • 4-Wire harness
    • 7-Way to 6-way adapter cord
    • 6-Way socket
    • 12 Spade connectors
    • 4 Quick-splice wire connectors
    • 6 Zip ties
    • 1 Ring terminal
  • Made in the USA


Specs:

  • Wiring harness length: 26'
    • Wire gauge: 16
  • Adapter cord extended length: 7'
  • 1-Year warranty


Notes:

  • A brake light relay (RM-88400 - sold separately) may be required if used with a flat tow brake system. (See below.)
  • A wiring converter (118158 - sold separately) and 2 additional diodes will be needed to retain separate turn and brake signals. (See below.)


  • review for diode kit

    "Don't be intimidated by diodes: if you can strip and crimp wire, this installation will be no problem."


    Combined Lighting System vs Separate Lighting System

    Combined vs Seperate Lighting System

    A combined lighting system, or 2-wire system, uses the same light bulb to signal both braking and turning. (In other words, the car signals a turn by flashing the brake light.)


    A separate lighting system, or 3-wire system, has the brake signal and the turn signal light up independently of each other. Typically, the turn signal is amber.


    To keep the separate lighting system on your car functioning properly while you're flat towing, add a wiring converter (118158 - sold separately) and 2 additional diodes.


    Do I Need a Brake Light Relay?

    If the engine is off and your car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override the turn signal sent by the RV when you are slowing down to make a turn, creating a potentially dangerous situation. Other drivers will see that you're slowing down, but not that you're making a turn. With a brake light relay, you can signal both and travel safely.




    9523010 Demco Taillight Wiring Kit with 4 Wire Flat Trailer Connector

    9523054 Demco Trailer Connector Adapter - 7-Way to 6-Way - 7' Cord


    California residents: click here


    Customer Satisfaction Score:

    Ratings & Reviews

    4.8

    79 reviews
    This complete kit includes everything you need to correctly display your RV's brake and turn signals on your vehicle tail lights. Includes coiled 7-way to 6-way adapter cable and 6-way car-side socket.

    by:



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    by:

    Great product, but you need to be handy, and have some technical knowledge.



    by:

    Plug and play, pretty much, product works and is still working! Thanks.



    by:

    What I expected. Wish the harness had been two feet longer (installed on JLUR). The installation video one etrailer.com was a good resource. Worked as advertised.



    by:

    We installed the system with relative ease. We used a vehicle lift to install the wiring underneath the vehicle. Works nicely with our flat towing system.



    by:
    Ford Escape

    I'm happy with the product and I was able to install it without too much difficulty. The etrailer.com video does not accurately represent the tail light removal. I believe the video was for a 2022 Ford Escape Hybrid. On my 2024 Ford Escape Hybrid the rear bumper must be removed in order to remove the entire tail light. To avoid removing the bumper, I disconnected all except the one hidden connection and pivot the tail light to create approximately 1.25" space at the top. I was able to fish the wires and make the diode attachments through that 1.25" space



    by:
    Chevrolet Trax

    I was told that this tail light and diode kit works on my 2025 Chevy Trax. It does not. You cannot hook if up to your battery to charge while towing because you cannot disconnect the positive battery terminal. As such, you cannot isolate the vehicle battery.
    Additionally, you cannot connect the trailer light wiring to a 2025 Chevy Trax. The tail lights and signals are controlled by the vehicle's computer. You must use separate magnetic tail lights and signals. I still use the adaptor cord, but only to go from my motorhome to separate tail light wiring that runs to my magnetic lights.



    by:

    Arrived quickly and eazy to install



    by:

    E trailer has the best customer service that I have experienced in over 20 years!



    by:

    Good product. Easy to use. Works perfec tly.



    by:

    Very helpful staff!



    by:
    Jeep Wrangler

    This kit was fairly easy to install on a 2021 Jeep Wrangler. If you use this kit to set up a Roadmaster Nighthawk tow bar you do not need the 7-wire to 6-wire coil connector as the tow bar comes with it. Get a 4 diode wire kit without the coil connector and save money.



    by:

    Works great, to charge battery of toad you need to change the 12v power from center to match the towed vehicle or wire up towed car to center post 12v



    by:
    2023 Jeep Wrangler Unlimited

    Needed new wiring and diodes for my 2023 Jeep Rubicon. ETrailer makes it so easy to set up all the wiring for flat towing.



    by:

    etrailer was extremely helpful in getting me parts to flat tow our 2023 Jeep Wagoneer. More specifically, Noah took the time to research the required parts, offer technical guidance, and follow up to ensure I was taken care of. Top notch service which was much appreciated.



    by:

    EASY install and quick service

    James profile picture

    James

    7/17/2021

    Works great we use it at least monthly to pull our Jeep gladiator behind the RV no issues at all



    by:
    Jeep Cherokee

    The salesman was very helpful picking the correct setup for my Cherokee, easy to install, looks and works great



    by:

    Works as advertised , however I feel the braking is more abrupt than gradual ..



    by:

    Harry profile picture

    Harry

    2/19/2023

    Great



    by:

    Works great 1 year and still working pe rfectly



    by:

    Took time to do the wiring, but once done it works great!



    by:
    2017 Cadillac Escalade

    Great products and quick delivery.



    by:

    Works great, no issues


    25
    79
    Show More Reviews

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      Image 1 for
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