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Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical feedback.
Features:
Notes:
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.
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.
California residents: click here
The Hopkins wiring kit works great. Fairly easy to install and you can get great support from etrailer.
Works great. Easy to install. So much better then having additional lights to carry around and install each time I tow. I just plug in the "Towed" like any other trailer, and it's all done. Would do it again if I got a new "towed."

Nick
4/19/2018
I love both products. Getting the wire harness was such a good idea. Im happy you had it or I would be using magnetic lights and that would suck. The base plate and tow bar are perfect for towing our GMC. Unfortunately the Blue Ox cover was lost on a drive without the tow vehicle. I think they need to make the straps better to ensure they stay on during no tow driving. That is the only suggestion I have.
I installed a tow bar setup on my parents Chevy Equinox about a year ago so they could pull it behind their motor home. With that I installed this wiring harness for the towing lights. I have to say the installation went very well and did not require a masters degree to do it. Some simple tools a little planning and a couple hours of your time and you can have this installed and working. It made the hook up a lot easier for my father because it is one plug just like plugging in a trailer. The quality is vary high and so far it has been completely trouble free. It also does not interfere with the proper operation of the lights in the car. If your going to tow a car behind your motor home I highly recommend this harness. This review setup offers a place to add pictures but the harness installs so nice that you can not see it to take a picture of it. So just imagine the wire comfortably installed along with the original wires in your car. Also along with all the other good stuff I mentioned they also have a video you can watch that will show you exactly what to do. What more could you ask for. Worth every penny.
Have had the product installed on my 2017 Chevrolet Equinox LT for one year and it has performed flawlessly! Easy item to install with a great video from etrailer.com. It is a quality product that does not have to cut into the OEM wiring harness. It just plugs into the existing connectors. I recommend this wiring harness to connect my RV to my Equinox for dinghy towing.
This wiring kit is the way to do it right. I was using a magnetic light set which is OK, but the is so much better. The connections are custom designed for your vehicle with factory style plugs. No tow light wires draped over your vehicle since you run the wire along the frame to the front of the towed car. I should have bought this when I bought the tow bar.
Ordered and install base plate over a year ago and finally got to use it a couple of weeks ago because motorhome was in shop waiting on parts. Pandemic and supply chain issues. Anyway, the base plate and accessories work great. Dinghy tracks well. Hardly know it’s back there.
Purchased the towing adapter for my GMC Terrain a few week ago, received it on time & boxed not damaged. Watched the videos’ about three time on how to do it myself and started one evening and finished it the next morning about three hours with Beer Breaks, LoL. All the parts fix perfectly, had no problems with any of the parts, Product is real sturdy and if you don’t know where to look at the bumper you will not see the hide away receiver brackets. Very nice product, do it yourself and save money. up loading tgwo Phoos
Purchased the towing adapter for my GMC Terrain a few week ago, received it on time & boxed not damaged. Watched the videos’ about three time on how to do it myself and started one evening and finished it the next morning about three hours with Beer Breaks, LoL. All the parts fix perfectly, had no problems with any of the parts, Product is real sturdy and if you don’t know where to look at the bumper you will not see the hide away receiver brackets. Very nice product, do it yourself and save money.
Fits a described. Fit and installed without any difficulty. Fast shipping. Customer service and assistance great. Thank you.

Greg G.
3/16/2018
Still works as described. Thanks again!!
I purchased both wiring and base plate of tow bar of my Equinox and it fit beautiful. I then purchased a trailer hitch and was pleased by all.
The large library of 'how to' videos' that Etrailer offers are just super. They answer so many 'pre-purchase' questions. No other site seems to offer so much help. I was originally sent the wrong light kit by mistake. They had a replacement in the mail the same day I called. GREAT service.
Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Item # HM56108. Arrived early. Directions and Video are quite helpful. The Kit was very easy to install. This Kit was the second one I have installed and all the lights work perfectly.
This plug and play wiring kit is the only way to go. I've done the individual diode kit before and the small cost-saving is not worth the hassle. If a custom kit is available for my next vehicle, I will be sure to use one again. By the way, the etrailer video was a big help in the do it yourself installation process.
Easy install
Excellent wiring harness. All connectors fit perfectly, and the utube videos helped me complete the wiring.
hopkins wiring harness worked great on our 2014 chevy equinox. no complaints
Easy to install. Plugs into factory harness. Has worked perfectly since installed.

Charles
2/16/2019
It is plug and play. Works perfectly. Would buy again.
The quality of this wiring kit seems to be good, wire lengths were spot on, and the etrailer video was very helpful .
Should use plastic wire cover to keep wire run from rubbing.

Bob C.
2/7/2018
Great, thanks!
The best customer service from Melissa, and her manager. Delivery and follow up was the best as always. Will continue to purchase from etrailer in the future.This is the way all companies should conduct business.
Tammi did an excellent job assessing my needs and offered the Hopkins wiring harness that just plugged in and works great.
Thank you Tammy
This base plate is the third Road master base plate product that we have purchased and love them , easy install and built solid. We trust Road master products.
This harness fit our 2013 Equinox perfectly, no cutting into the factory harness.
Product has been fine. Towed 2000 mi with it last year. Producy was easy to install and install videos from e trailer were very accurate. I would order again from them
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Stephen
1/7/2024
Still working great. Haven’t had any issues. Highly recommend.