T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2016 Infiniti QX80
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2016 Infiniti QX80
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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 - no cutting, splicing or tapping required. Includes tail light converter.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.
Once installation is complete, the 4-way flat connector will be stowed either in the jack storage compartment of your rear cargo area or beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure if you are mounting it near the hitch.
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.
Tail Light Converter
A tail light converter is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. The tail light converter combines 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.
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Works Great Thanks
easy to install grate company to buy from
Exactly what we needed
works just fine! thanks!
Great product, real easy to install
Great ServicePart was as described and prompt delivery
Easy to install. The hardest part is routing the wires the way you want them.
Product arrived quickly and does the job perfectly. I will do buisness again.
product works great as described, it was easy to install and i received it very quickly. thank you
Excellent product, excellent price and excellent delivery. I will buy again from your company with I need another boat related product.
Fast service, I ordered the product received a confirmation then within an hour and a half from the time I ordered it it had been shipped. 2 days later received and installed and it works great.
The purchase was what I expected, it was well packed and delivered very quickly. I would order from etrailer.com again.
Was easy too install and would recommend to friends and family.. The trailer wire was long enough.
Follow the instructions to the "T", step by step and installation was a breeze. The only super-minor thing would be that the flat-four lead could be a few inches (4 - 6" maybe) longer.
company is great to work with, shipping was extremely fast and product is top grade. I will do business in the future with etrailer.com
Excellent product. Atfer watching the how to install video on your site, I was able to complete the entire installation process within 20 minutes.
It was very easy to purchase this product. The description was simple to understand, and the installation video was a bonus. The order was processed quickly so the product was recieved in a good timeframe.
T-Harness FitmentHarness hook-up was pretty simple, but the wires from left tail light to junction box were too short to locate inside jack storage box as directed. Need to be at least 6-12 inches longer. Barely reach inside rear "door" to attach on molded plastic trim without getting hit by "door" when it closes. Aside from that, I was very satisfied.
Product arrived quickly and was easy to track. Installation instructions were straightforward. Only problem was not enough slack to mount the control box where instructed.
Just installed this on 1998 Grand Voyager. Product seems well-made, with sturdy connectors for both taillights and the trailer. The tee connectors fit the existing tail light connectors snugly and lock into place.
The instructions cover two types of installation, one each for minivan and SUV. The minivan instructions are silent on how to route the wire connecting the left- and right-side tail light connectors. I had expected to go under or through the frame, but saw no way to do this, and the instructions did not help. I finally decided just to route the wire inside the lower part of the hatch opening, around the outer edge of the weatherseal. I then pulled the slack out of it to draw it against the metal lip that holds the weatherseal. I probably will go back and drill for a few connectors to hold this wire in place. The instructions should be revised to make this aspect of the installation clear.
The installed product is working fine.
Delivery was very prompt. Installed within 15 minutes! I did not want to answer the survey until I have Installed and check operation. NOW CONFIRMED.I would recommend you 5stars .installation 4.75 stars( could not find a location for the box yet) .Thank you for a good product.
Have not installed yet but it looks to be an excellent product. Quality harness will make it easy to complete my trailer hitch installation
instructions and videos made the installation easy.
The design flaw with all harnesses is that the trailer connector is to large to fit through your automotive holes leading to the outside. An additional quick disconnect plug would solve this issue.
Perfect fit and great instructions, I'm fairly mechanical and do most of my own work and with that being said, if you have the correct tools and basic knowledge and the ability to follow instructions, this is a easy project, both the wiring harness and the draw bar installation. I've bought from etrailer in the past and will continue to shop there first for my trailering needs.
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Victoria H.
4/11/2025
Glad delivery was quick and that you had it up and running in no time Daniel! Thanks for your recommendation too :) What are you planning to tow?