etrailer | Mount: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2017 Mazda 3

Click for more info and reviews of this Tekonsha Custom Fit Vehicle Wiring:
https://www.etrailer.com/Custom-Fit-V...
https://www.etrailer.com
Don’t forget to subscribe!
   / etrailertv  

Full transcript: https://www.etrailer.com/tv-install-t...
Speaker 1: Today on our 2017 Mazda3, you're going to be taking a look at, and I'm going to show you how to install, the Tekonsha T1 vehicle wiring harness with 4 Pole flag trailer connector, part number 118405. This is what our wiring looks like when it's installed. This is going to give us the proper lighting functions to safely tow our trailer down the road. It's going to give us both turn signals, or running lights, brake lights, and our ground. It's also going come with a nice dust cap to cover your connections, to reduce any moisture, dirt, and debris from getting in and ruining into the connections there. As far as the installation goes, it is a fairly simple installation.

It's going to hook directly to your taillight wiring, or your factory wiring on your vehicle, and then to your taillights. You're going to have a power wire that's going to run to the battery in the front of the vehicle.You're also going to have a fuse that's going to fuse that link. What I really like about this wiring is it's going to have a converter box, and what's the converter box does, is it's going to prevent any back feed from getting to your factory wiring in your vehicle. That means is if your trailer wiring has a short in it, the converter box is going to stop that short from getting into your factory wiring and ruining that wiring. The good thing about the power wire being right up to your battery is it's not drawing any power from your taillights, if your trailer happens to have a few extra lights on it.Now that we've gone over some of the features, let me show you just how easy it is to get installed.

First thing we need to do is this panel that runs right along the back here, we're going to take either a pick, or you can use a small screwdriver, and you're going to have little fasteners running along the front side of it. We need to pop those off just like that. You're just going to pry out the center. We just need to get it out enough. You'll see three nuts.

There's one here, one on top, and one on the other side. We need to remove that to remove our tail light. Take a 10 millimeter socket. We'll remove our nut. We'll go ahead and unplug our wiring.

We're going to pull our taillight towards the back. We may need to use a little plastic trim panel tool. We'll just work the taillight out. We may want to pull back on our taillight. Set our taillight aside. Now we're going to repeat the same thing on the passenger side.Next, I'm going to either use a wire hanger, airline tube. Wat I like to do is take a string, put a nut or a bolt on it, something that has a little bit of weight. I'm going to drop it right down the hole and it's going to come right out the bottom. I'm going to take the end of my wire that needs to connect to this. I should make a loop like this, and this side's going to have two. I'll just feed one end like this, pack it down, and pull it up like that. Now I'm going to take the ends of my two plugs, and and I'm just going to match them up. Then we can plug in the other two ends back into our taillight, and then reinstall our taillight. Install our taillight in place, and then put our three nuts on on the inside. Next we're going to mount our converter box.This isn't really flat right in here, but right on this back side it's flat, but because it's open to the elements, we're going to need to clean it off. Let's use a rag, paper towel, with some rubbing alcohol. We'll make sure that area's cleaned good. I'm going to take our double-sided tape that comes in our kit, in our converter box. Make sure your press it into place. Remove the other side. Take this, then we're going to push it into place. Next we're going to take the red wire coming off of our converter box. We have butt connectors that come in our kit, however, they're not waterproof, so what I'm going to do is I'm going to change them out for waterproof, or heat shrink butt connectors. Go ahead and take one. Put it on the end of our red wire. Crimp it down. Now we're going to take the black wire that comes in our kit. You need to strip one end.We're going to add this to the other side, crimp it down. Then we'll take a heat source and shrink up our butt connector. Pour in an amount of groundwater. When you use a self-tapping screw, 1/4" socket, you want to make sure it's mounted to metal. I'm going to go right up here on the bottom panel of the body. Next, we're going to take our green wire. It's going to our passenger taillight, and our 4 pole wire, and you're going to have little plastic brackets that hold the bottom of your fascia in place. So we need to go behind our hitch. We're going