Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2013 Porsche Panamera
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2013 Porsche Panamera
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Wiring a trailer usually means cutting into factory wires, but this harness keeps things simple. The Curt T-Connector plugs directly inline with the vehicle’s tail light wiring and gives you a 4-flat connector for trailer lights. There’s no splicing or wire tracing—everything clicks together using factory connectors for a clean, hidden install.
The harness includes a powered converter that draws power directly from the battery through a fused connection. It uses a 10-amp inline fuse on the power feed and a 20-amp fuse that installs in the under-hood fuse box at position 10 labeled “Trailer Tow.” This setup protects both the vehicle and trailer circuits while ensuring consistent 12-volt power to your lights.
Some vehicles don’t come pre-wired for towing, leaving you without working trailer signals. This harness adds all four basic functions—running lights, turn signals, and brake lights—through its standard 4-flat connector. That means your trailer lights stay in sync with your vehicle’s lighting right out of the box.
If you want to expand beyond basic lighting, this harness sets you up for it. Once the 4-way is installed, you can plug in an adapter like a 4-to-7-way to run additional circuits or connect a brake controller later. It’s a solid foundation that lets you add towing features as your setup grows.
The converter box is sealed and weather-resistant to handle regular towing use. If it ever fails, the full harness can be replaced as one unit for straightforward maintenance. Curt backs it with a one-year limited warranty, so you can wire up and tow with confidence.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Was install
Perfect fit . So easy
Excellent, just what I was needing, and in 4 days. Others were saying 2-5 WEEKS!!
no problem some far
Easy to do install
My package arrived swiftly in the mail and was well packaged. Great service support on a returned item also. Thanks.
Got it fast and it was easy to get the correct parts and was delivered very fast .well done
Fast delivery and super easy to install all a matter of about 30 minutes from start to complete and I am very picky on how things are done.
Hardest part was taking out the torks bolt for the belt re-tractor on the driver side.
Lee
11/29/2019
No problems at all and use it every few weeks.
Very nice product and fast shipping
It all shipped safe and sound. I was able to easily install. Thanks for the online videos.
I could not be happier with what I received. Install was a breeze and look to use etrailer for all my trailer needs!!!
Product is very good and fit well Paper instructions for a little confusing video help quite a bit
Bob P.
10/15/2022
Working great. not bad installing it either. I would recommend this product rather than try to wire it any other way.
I can't say enough great things about etrailer. Even through email, responses are very quick. They were able to help me get the right part when part of my order was wrong through no fault of their own. I could not ask for better customer service. Thanks, etrailer!
The product installed easily, and exactly like the instructions said. The only complaint I have is with the design. So you run the pigtail out the back hatch of the Pacifica. Which is okay, but it seems like with a bit more wire you'd be able to route it down through the tail light assembly on the drivers side and then along the hitch itself.
I'm afraid the door closing on it over and over again is going to sever the wires.
It was inexpensive. It was fast and the video to install it, It's so important because this thing's like ebolas spaghetti
Craig
11/25/2025
It lost my brake lights 3 weeks ago I had to remove it go back to original wiring
great service guys, i had it way before i expected it. top notch customer service and the wiring kit is super easy to install and does what its suppose to do.
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Carl L.
8/16/2019
The kit was awesome. Exact fit and easy easy to install. And is working perfectly. And the plug in that comes with it that tells you all is working correctly Very nice