T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Video Transcript for Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118789 Review

Speaker 1: Today we're going to take a look at the T-One vehicle wiring harness with the 4-way flat trailer connector. Now, this is a custom fit part. It is designed to fit the 2018 BMW X2 vehicles. And on our custom fit part, I always like to recommend for you to go to our website, use our fit guide, put in your year and model vehicle, and it'll show if this will work for your application. Now, this harness will provide this 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights. It is compatible with 5-pole, 6-pole, and 7-pole adapters, that we do sell separately.And this harness does connect very quickly and easily.

All you have to do is locate your connection points, which are behind the tail lights on the vehicle, plus in these T connectors, one on each side, driver's side, passenger's side. Ground's your white wire. And then run this power wire to your vehicle's battery. This harness does include this ModuLite, which is a power module. This is to ensure that your vehicle's wiring matches that of your trailer.

This does connect directly to the vehicle's battery. And that's to avoid overloading your vehicle's electrical system.Now, the wire that runs out the back, that the 4-way's attached to, that plugs into your trailer, that's a 16 gauge bonded wire. And if you notice, the 4-way has this integrated dust cap on it. What that does is when you're not plugged in or using it, you just put that cover on. It protects the terminals.

A few specs on this harness. The maximum amperage for the stop and turn light circuit is five amps per circuit. For the tail light circuit, it's 7.5 amps per circuit. Now, this kit will include everything I laid out here on the table. And I'm just going to briefly go through all the pieces and where they attach.When you go to install this, you gain access at the rear of your vehicle, behind the tail lights.

And you'll want to start on the driver's side. You'll take this T connector that has the yellow wire in it, that's for the driver's side, and you'll unplug the harness from the tail lights and then plug this in between the two. Once that's connected, you'll take the other T connector that has this length of green wire and then you'll take . the green wires lets you know that that's for the passenger's side. And it's a length of wire, so you'll run this over to the passenger's side.Once you get over there, behind the tail lights, you'll go ahead and plug this in behind the tail lights. Once those two are connected, you want to make sure this ModuLite box is connected to a good flat surface so it doesn't bounce around. It does have a tab on it with a hole that you can drill a screw to hold it into place. Another thing is they give you a piece of double face tape you can use to hold it down. Either way, you just want make sure that doesn't bounce around. Once those are all attached, you could run your bonded wire out the back towards the trailer. And then you'll have two remaining wires, a white wire and a black wire.Now, the white wire will have this eyelet on it, that's for the ground. You want to connect that to a good, clean ground that's nearby. If there isn't one, you can make your own using this grounding screw. And then the last wire's this black power wire. This needs to run up to the front of your vehicle, to your vehicle's battery. And the way you do that is they give you this extra length of wire and some conductors. You'll take a butt connector, put it on the power wire, connect it to one end of this length of wire, and then run it all the way up to the front of the vehicle. Now, when you get to the front, you don't want to connect this directly to the battery, you want to run it through this inline fuse holder.Take your other butt connector, install it to one side of the fuse holder, just like that. And then on the other side, you take the eyelet connector they include and attach that to the battery. Once that's all attached, pop open your fuse holder, take your include 15 amp fuse, install it into the fuse holder, put your cap back on, and your system's all ready to go. They do have a set of good, detailed instructions that'll describe all this. How to do it, with pictures. And they even include some extra cable ties you can see that'll take up any slack in the wiring. But that should do it for the review on the T-One vehicle wiring harness with the 4-way flat trailer connector.