To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Wiring a trailer can be tricky, but this Curt T-Connector makes it simple. It plugs directly into your vehicle’s existing tail light connectors to give you a 4-flat trailer plug for running lights, turn signals, and brake lights. There’s no need to cut or splice wires—just plug it in and it’s ready to tow.
The harness uses a hidden, plug-and-lead style connection that keeps the wiring tidy and out of sight. It routes through existing trim and grommets for a clean, factory-looking install with no dangling wires or exposed splices.
This harness includes an integrated converter to properly match trailer signal and power requirements. That means the trailer lights work correctly without extra modules or guesswork. It’s designed so you can do the entire install yourself using basic tools and straightforward connections.
Once installed, the 4-pole flat connector gives you reliable power for all standard trailer lighting functions. It’s built for long-term use with solid connectors that hold tight and deliver consistent signals trip after trip.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer.com. Let's take a look together at this CURT T-Connector vehicle wiring harness with four pole flat trailer connector. Now this wiring harness is designed to fit your 2011 to 2014 Scion XD and then your 2008 to 2014 Scion XD without LED taillights. On custom fit parts such as this wiring harness, I do recommend taking advantage of our vehicle fit guide, enter the year, make and model of your vehicle, and our fit guide will confirm if this will work for you or if we have another harness that will work for you. Now this harness is going to give you a four pole flat trailer connector at the back of your Scion to power your trailer signal lights.
This is also going to be compatible with five pole, six pole, and seven pole adapters. Those adapters are sold separately. As you notice here, we do have a dust cap for that four pole flat connector and that cap is going to cover up your connection points here to keep it free from dirt, debris, and moisture when it's not in use. This black box on this harness is a powered taillight converter and this is going to ensure that your Scion's wiring matches out of your trailer. This is going to reduce strain on your vehicle's wiring system.
By the way, CURT does build each converter box using surface mount technology for consistent, reliable performance. It maximizes trailer light yield and intensity while producing minimal heat, ensuring superior operation in rough road conditions. Now this harness is designed to connect quickly and easily. You will need to locate your vehicle's wiring harness and it should be located behind the driver's side and passenger side interior trim panels in your rear cargo area and you will have to remove the connectors themselves or unplugged the connectors themselves. You wanna be careful not to break the locking tabs and then you'll insert these T-Connector ends between the vehicles wiring connectors and then you're gonna lock them in place.
These T-Connector are, these T-Connector ends are custom fitted for your Scion, so they're gonna match up perfectly with the connection points on your vehicle. They're gonna snap and lock together for a tight secure fit. Once you have these plugged in, you will need to make a good ground connection. The ground is this white wire, as you notice, it does have a ring terminal attached to it. And this does come with a self-tapping screw, so you can get this grounded to a suitable location such as your vehicle's frame or cross number.
You just wanna make sure the surface is clean and rust free. Next, you will need to mount your converter box to a safe out of the way location. You can do that with one of the mini cable ties included with this kit or the double-sided adhesive tape that's also included with this kit, to get this out of the way and secure it so it's not loose and flopping around inside of your vehicle. Now you can secure any excess or slack in your wiring, again with the cable ties that's included with this. And then once installation is complete, the four-way connector can be stowed in an out of the way location within your cargo area. Instructions are included to guide you through the installation process. And it is also recommended that you use a small amount of dielectric grease on all of your electrical connections, like the plugs on the vehicle end and the four pole flat connector itself. That grease is designed to prevent any electrical failures caused by corrosion or moisture. So on your screen, I am including our item number for that grease. You can just take that item number and pop it in the search field of our website. That will take you to that grease and you can add that to your order. Well, that's gonna wrap up our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
Ratings & Reviews
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Viet H.
10/5/2018
After a year, still no problems. Glad I decided with this company and their recommendation