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Install your Redarc Tow-Pro electronic brake controller (sold separately) quickly and easily with this custom wiring adapter. Plug one end of the adapter into your Tow-Pro brake controller and plug the other end in beneath your vehicle's dash.
Features:
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Brad Hello neighbors. It's Brad here at etrailer. And today we're taking a look at the vehicle-specific wiring harness, that will work in conjunction with the Tow-Pro Elite electric trailer brake controller. These harnesses are going to be great to work with your Tow-Pro Elite in a variety of different trucks and SUVs. Now, make sure that you get your vehicle-specific harness. You're going to want to use our fit guide on "etrailer.com", and that's going to make sure that you get the right harness, and that way your install goes nice and easy.
Included in the REDARC kit, you will find this plugin adapter, and this is going to have these spliced ends, and you're gonna have to tie into your brake signal, your brake output, your power output and your ground. Now, if you are pretty handy with electrical, that's awesome. That's great. You can use this. But I'm the kind of person, plug and play in OEM kind of setup or really nice factory one like this.
This is the vehicle-specific harness. So this ties in directly to our factory tow system, and clips right in, it's got this nice braided sheathing on it, to kind of protect the wires, and then it plugs directly into our module here. So, to save yourself a little bit of headache and time, and make the install go that much smoother, and not have to worry about loose connections, I highly recommend getting the vehicle-specific harness. So this end of the plug is specific to your vehicle. As you can tell, it looks like the factory plug, it fits in perfect, has the locking mechanism, so you aren't gonna have to worry about loose connections happening with your plug, and it's going to make install a lot easier.
And that was a look at the vehicle-specific harness for the Tow-Pro Elite electric trailer brake controller..
The wiring harness that was shipped to me was wrong ( even the description included said it would not work). The company website said it would work but it was wrong.
Customer service was Great!
I hope that my replacement order will be correct this time.
perfect for my vehicle. 5 minute install
Excellent product. Plug and play simpli city.
Worked great and was the easiest install ever. Cord had plenty of length to move around and find the best location for the TowPro controller.
Looks like it will work fine, haven't installed it yet.
Great looking product. Just installed it, will see how it preforms next week. I wanted a brake controller that I could make look like factory OEM. This was it. The reverse parking assist does not work on my truck, so I repurposed that spot in the dash for the brake controller.
Fits 1997 Ford F250 prewired controller wiring under dash
Very low profile mount on the dash. Controller sensitivity very good for proportional braking and adjusting trailer response.
Installed onto a 2004 F-350 Super Duty, the factory connection made this a very simple install.
I spent more time trying to decide where I wanted the on dash controller.
So far I like the low profile look of the controller, now I just need to get my trailer to really test it out.
if you are installing an aftermarket trailer brake controller in a late Ford truck, this harness is a must!

Joel C.
12/1/2021
No complaints from my customer so I assume all is well. Ive installed several of these with no issues whatsoever.
Harness plugged right in with no proble ms.
Makes installation easy - on my 99 Ford Expedition I needed to add breakers to my fuse block
The product worked as it was described.
It is a very good Trailer Brake Controller.
The 4 various functions / modes make the controller very versatile.
Would recommend this controller for anyone pulling a trailer.
Good people
Installation as easy as it gets.
Works excellent. Installation instructions were everything I needed them to be. Very discreet components, unless you know what it is you wouldn’t notice it’s there.
Plug and play harness.

Stephen
8/8/2022
Still working great
Install was easy and works as expected. Purchased the connector adaptor so I didn’t have to cut any wires.
Only thing I found an issue is when you push in the button to engage the brakes sometimes it doesn’t push in all the way. It might have been how I installed it in the car panel but not a huge problem.
The wiring harness made installation of my brake controller very simple and easy.
I can verify that this worked on my '21 Explorer. The factory plug was difficulty to find, but I eventually found it tucked up under the steering column.
Unbelievable service! Within an hour of placing my order online I got an email from etrailer.com stating that it was being shipped! It arrived two day later! Customer for life. Thank you all for the great service!
The adapter was perfect for my 2002 F350 Superduty to allow me to utilize the factory trailer controller wiring.
Viewing the pictures I purchased this for a 99 f150. Not on the list of vehicles it fits. It is a plug and play. No issues at all. Hope it helps others trying to find the correct harness.
Poor instructions to connect to existing. Good product but waste time looking for the connector in use.
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James
8/21/2025
very well.