Tekonsha T-One Vehicle Wiring Harness Installation - 2020 Acura MDX

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How to Install the Tekonsha T-One Vehicle Wiring Harness on a 2020 Acura MDX


Ryan: Hey everybody, Ryan here at etrailer. Today, on our 2020 Acura MDX, we're going to be taking a look at and showing you how to install the Tekonsha T1 Vehicle Wiring Harness. So one of the things I really like about this wiring is how you're able to store it whenever you're not using it. If you're someone that don't plan on using wiring all that often, you can actually keep it inside of your Acura out of sight and out of the elements, and that's what our customer chose to do today. And all you're going to have to do is open up your floor covering and your little cargo tray, pop open your little cover, and pull your wiring out. So inside of here, it's nice and protected and out of the elements.

You're not going to have to worry about getting hung up on anything.Now what's nice is if you're someone that uses this a lot and you'd rather have it permanently mounted outside where the hitch is, you can do that too. On this rubber mat here, you can see there's kind of a circle cut out almost, well, right underneath that piece of rubber, there's actually a grommet. And that grommet's large enough for you to drop your connector down through to the underside of the vehicle where you can mount it up on the hitch. So it's really versatile and will work out well for you, whether you want to keep it inside or on the outside next to your hitch.But other than that, whenever you are ready to use it, you simply just drape it over the threshold. And one thing you want to avoid is the latch area.

You don't even want your wiring to get hung up in that and cause any damage. So with that being said, simply close your hatch on it. That's perfectly fine. It's not going to hurt anything. And then you're ready to hook up to your trailer and hit the road.And that's because whenever you do hook up to your trailer, this is going to provide it with the necessary lighting functions, not only to remain safe, but legal as well.

And one thing, too, a lot of people don't think about is a lot of light-up accessories tend to have the same exact connector. So if you have a cargo carrier that has a light on it, or maybe a step back here, this will power that up as well. That's just going to have a really nice thick, rubber dust cover to help keep these terminals protected. But I do recommend to go a step further, regardless if you keep it mounted inside or out, is to apply some dielectric grease those terminals every now and again. That's just really going to help protect it from any corrosion.What's cool about this cap too, since it is attached to the wiring, say if you happen to maybe drop your trailer and plan on coming back in an hour or two, you can kind of just wrap it around your hitches safety chain loops and temporarily mount it like this.

That way you don't have to go back in and pull it out. Something that is really important with this wiring kit is the fact that it uses a module box. So that module box has got to protect your Acura's factory wiring if a short or electrical issue we're to occur on your trailer side. And that would really give me a lot of peace of mind, knowing with how advanced these electronics are in today's vehicles, you're not going to have to worry about jeopardizing it or causing any issues down the road.So at the end of the day, a really well-built wiring kit that should last a long time. Now as far as the installation goes, it's really simple actually. You more or less plug it in and install a couple of fuses. And that's really all there is to it. So should have no issues getting it done at home, in your garage, or maybe even in the driveway. Speaking of which, let's go ahead and do that together now.To begin our install, we're going to be here at the back of our MDX and we're going to need to locate the factory connector. Now that should be inside of the back. So I'll open up our hatch, and what we're going to have to do is just kind of get our floor coverings out of the way. So this one just kind of folds back. This cover here you can lift out, swing that back, and we need to remove this little felt cargo area there. So we just lift up on it, pull it out, and set it to the side. So with that cargo liner out of the way, you can see we have a little panel here, that's covering up some fuses. We're going to need to remove that. We have a 00:04:24 small notch down here. You can just take a flathead screwdriver or something and pry behind it and set it off to the side.So now we're able to locate the connector that we need to plug into and it's going to be this one right here, this empty rectangle slot. So with that being said, we can take the connector here on our new wiring and plug that in. Now what I'm going to do is just kind of run that connector behind this panel here, that way it's not in the way of our fuse panel door when we put it back on. Kind of just get it behind there with the rest of our wiring. Just a little room to work there, and this simply just pushes into place, so it'll only plug in one way, so you can't get it backwards or anything like that. Line it up and we'll push it into position.Now we can do is hook up our ground wire and this will be the white wire with the pre-attached ring terminal. Now if you look right here, we're going to have a factory grom. That's going to be a great spot to hook our wire up. So if we remove this bolt using a 10 millimeter socket, pull it all the way out, and what we're able to do is take our white wire, push that bolt through it, back through all of those factory grounds, and re-secure it. Now what I went ahead and did was just secure our module box and I just used a zip tie and ran it along this factory wire in here, so that'll stop it for bouncing around.Now if you move to our fuse block, we need to install the included fuses. We're going to be putting the 10 amp fuse into this slot right here and the 7.5 amp fuse into this slot right here. So I'll just grab those and simply push them into place. We have a ton of room to work down here, so just be careful. You don't want to drop these fuses as they are relatively small. So here's what our fuse block looks like once we have our fuses installed. You can see the 10 amp one went right here in this slot and the 7.5 amp right there.Now before we get carried away, putting everything back together, it's a good idea to test our wiring and make sure it's working properly. I'm using this little tester and you can pick this up here at etrailer. That being said, we'll try our left turn signal, our right turn signal, our brake lights, and our running lights. So now we can put everything back. Now since our wiring does live inside of the vehicle, I just bundled it up, kind of just keep it in this compartment, that way it's out of sight until we're ready to use it, and then we can just simply reinstall everything the opposite way that we removed it.And that'll finish up our look at and our installation of the Tekonsha T1 Vehicle Wiring Harness on our 2020 Acura MDX.


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Video by:
Joshua S
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Jonathan Y
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Jacob T
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Dustin K
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Chris R
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Zach D
Installed by:
Cole B
Test Fit:
Andrew S
Test Fit:
Robert C
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Ryan G

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