Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2017 Cadillac XT5
These items fit your vehicle
2017 Cadillac XT5
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This Curt T-Connector plugs in line with the vehicle’s tail light wiring, so there’s no need to cut or splice individual wires. It connects behind the rear interior trim panels using existing plugs, giving you a clean, factory-style install. Everything snaps together securely for reliable performance and a fast setup.
Once installed, the harness provides a standard 4-flat trailer connector that powers running lights, turn signals, and brake lights. It’s ready for small trailers, utility haulers, or light towing accessories that use a 4-way plug. This makes it easy to hook up and go without extra adapters or custom wiring.
You don’t have to attach a separate ground wire—the harness is internally grounded within the wiring assembly. That means fewer steps and fewer potential connection points to fail over time. Just plug it in, route the 4-flat lead out near the hitch, and it’s ready for use.
For setups that need a brake controller or charging line later on, this 4-way is the right place to start. You can easily convert it into a 7-way using an adapter kit when you’re ready for heavier trailers or more advanced towing gear. It’s a flexible foundation for any future towing needs.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Excellent
very easy to install great fit
Excellent service. Product easy to install , exactly as described, and works perfectly.
Retired ford master mechanic, but easy enough for the DIY guys.
Thanks for the fast service,
Robert S.
Super fast and parts were packed great, and it was free shipping.
The wiring kit was the perfict fit for my van. Just plug and play. eTrailer came through for me again. Prompt service with quality products.
The instructions were a bit confusing and took me a minute to figure it out. Once I stopped looking at the pictures, nice but not informative enough, and looked at the harness and tail light assemblies, I figured it out pretty quick.
It all snapped together and worked great. I would give it 5 starts if the instructions were a bit more clear.
Over all, I'll order again when I am ready to install one for my truck.
Never bought or installed a towing hitch before. I contacted etrailer on the recommendation of a friend. Nik M at etrailer was thoroughly professional and competent in helping me select the correct assy's required to complete the project. Shipping was fast and installation was very straight forward. I had some minor technical questions and they were handled in a timely and satisfactory manner. Excellent experience and would highly recommend etrailer. I have another towing hitch project in mind and I will be calling them about it.
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Robert S.
12/6/2017
excellent product has given no trouble at all excellent product, still working great