Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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1996 Hyundai Accent
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1996 Hyundai Accent
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Wiring a trailer can get messy fast if you have to splice into factory circuits, but this harness makes it simple. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector plugs directly into existing vehicle connectors. There’s no cutting or guesswork—just plug it in and run the included power wire to the battery. It gives you a solid, factory-style connection that’s ready to go.
Some factory lighting systems can’t handle the extra load from trailer lights. This harness solves that with its powered converter. The converter draws power directly from the battery, protecting the vehicle’s delicate tail light circuits from overload. It keeps everything working safely and reliably, even with fully lit trailers.
Once installed, the harness provides a 4-flat connector that powers your trailer’s running lights, brake lights, and turn signals. It’s the common setup for small to mid-size trailers and works right out of the box with most standard trailer plugs.
If you plan to add electric brakes or a 12V charge line later, this 4-way is an easy starting point. It plugs directly into 7-way adapter kits like the ETBC7 when you’re ready to upgrade. That means you can start simple now and add more capability later without redoing your wiring.
The included power wire runs straight to the battery for a clean and dependable power source. This setup keeps voltage steady for bright trailer lights and ensures there’s no battery drain when the harness isn’t in use. It’s built for worry-free towing every time you hitch up.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Doug
3/24/2026
It worked out great for the only time we needed it to.
Gwendolyn Y.
3/24/2026
J.l.
10/29/2022
It has been a year since the installation. I only tow occasionally, but every time it reminded me of a good purchase I made. My colleague liked it too and was impressed that I could install it myself They know I am not a big guy and not that handy. I strongly recommend spending some extra bucks on this hidden-behind-bumper model. The reason is aesthetic for sure. This kind of feeling can add up over time as most of the time I only see the ball mount. Last week I got a rear flat tire on the highway at night. My trailer hitch ball mount was attached at that time. There was no problem when the tow truck driver drove my sienna onto his tow truck. When he wanted to back it off his truck. The ball mount caused a problem so he had to make some kind of ramp on the flat tire side. Taking off the ball mount may be a good practice when not towing. But who knows what can happen before you do it. In my case, a unhidden hitch will just make a bigger problem.
Jay O.
11/6/2022
After one year the Curt harness kit for Toyota Sienna has been working as advertised.
Jay O.
7/4/2023
After one year of use the replacement Curt wiring harness is still working. Id change my review to 4 stars if I could.
Stephen S.
12/16/2024
I installed the wiring harness a year ago. It has and is working flawlessly! Im very happy that I was able to install it myself and that it continues to perform so well!
Keith M.
10/12/2019
Great!!!
James
1/7/2019
Wiring is still going strong. Good customer service. Nice doing business with them
Mike
7/25/2015
Thanks, Moses. Can you elaborate on the in-cabin route you took for the wiring. I would like to attempt. I cant imagine running it under the car without a lift!
Jerald M.
2/11/2018
Still working fine , thanks !
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Mike L.
4/24/2018
On vehicles like passenger cars and minivans that arent typically used for full-time towing, the wiring harness manufacturers specify an installation that keeps the trailer connector inside the vehicle where its protected from the elements. Theres no problem with the way you installed the harness, but be aware that the connector is not as protected against corrosion caused by moisture and exposure to road debris.