T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
This item does not fit your vehicle
2016 GMC Canyon
These items fit your vehicle
2016 GMC Canyon
Arrives before Christmas To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, behind the driver's-side and passenger's-side tail lights. You will have to remove the rear threshold plate, privacy screen, storage covers, floor covering, and some interior paneling to access this harness.
Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.
Once installation is complete, the 4-way flat connector will be stowed in your rear cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
A ModuLite power module is built into this T-One connector. Because your vehicle runs on a multiplex wiring system, the wiring needs to be converted to be compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.
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Thank you e-trailer for the harness it worked out real well fit perfect had a mechanic put it in for us would buy again thank you again
Installation went very well thanks to your good video. All the components looked to be high quality and they arrived well packaged and on time.
Easy installation with the help of videos. The time-consuming part is getting to those connection points behind the taillights, and getting it all back together again. This install was on a '24 Chevy Trailblazer ('21-'25 would be the same)
The kit was received on time and well packaged. The online installation video was well made, and insulation went well. Very happy with the results.
Very Nice product easy to install
It works! I was worroed that installation would be difficult and confissing but aftercwatchingca video of installation and taking my time with it I was able to plug it all together.
I've had no issues with its operation thus far. Happy customer here.
I ordered the wrong harness, but it was correct according to their listing. Becky B. Was very rude regarding the return and they charge $30 to return the harness even though I bought the correct one from them. I am a repeat customer and really feel Becky B does not belong in Customer service. I will look for other options next vehicle. Product worked fine and is great quality.
This worked great, it was "plug and play".
No cutting or splicing, just connect fittings.
Very satisfied.
Ken
5/17/2023
Work well, Im very satisfied with the harness.
Always get a great product and great service at a great price at etrailer
Very great product can't wait to install
Easy installation especially with Plug&Play setup
Nice job Pat; great Customer Service
So much less work
Great
Excellent service
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Walt
4/24/2025
The wiring harness is working fine a year later. Very pleased and happy with it.