Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2006 Chevrolet Colorado
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2006 Chevrolet Colorado
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Wiring for towing doesn’t have to mean cutting into factory wires. This Curt T-Connector plugs right into the existing vehicle wiring to give you a 4-flat trailer connector. It’s a simple, plug-in setup that keeps everything clean and intact—no splicing required.
If your vehicle didn’t come with a tow package, this harness has you covered. The built-in powered converter draws power directly from the battery instead of the tail light circuit, so your trailer lights get full power without overloading the vehicle’s system.
The hidden plug-and-lead design routes through existing panels and grommets for a clean, factory look. Once installed, the connector is ready when you need it and out of sight when you don’t—nothing dangling below the bumper or sticking out awkwardly.
With a standard 4-flat connector, this harness handles running lights, turn signals, and brake lights for safe towing. It’s the common setup for small trailers and utility haulers, giving you everything needed to hit the road with confidence.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody, this is Jeff at etrailer.com. Today, we take a look at this CURT T-connector vehicle-wiring harness with the four-way flat trailer connector. Now, this is a custom-fit part. It is designed to fit the 2022 and newer Acura MDX vehicles. And on a custom-fit part like this, I do like to recommend for you to go to our website, use the fit guide, put in your year and model vehicle, and it'll shape this a work-free application. Now, this kit here is gonna provide this four-way flat trailer connector at the back of your vehicle to power your trailer's signal lights.
This kit will come with everything shown here on the table and it will connect quickly and easily. There's no cutting or splicing of wires. Basically what you're gonna do is locate your connection point, which is in the rear cargo area, and you do get a set of instructions, it will describe where to find that connector. Plug in this connector to the factory-white connector, and then you'll have this white wire here that you're gonna need to ground. And then you'll have some fuses that you're gonna install in the rear-fuse panel.
Now this does include this powered tail-light converter box right here. This is to ensure that your vehicle's wiring will match that of your trailer. It is a powered module so it does connect directly to your battery to avoid overloading the vehicle's electrical system. And it is constructed using SMT technology, which is surface-mount technology. Gives you more consistent, reliable performance and it will maximize the trailer light yield and intensity while producing minimal heat, ensures superior operation in rough-road conditions.
A few specs on this harness. The maximum amperage for the stop and turn light circuits is three amps per circuit, for the taillights is six amps per circuit. And just real quickly how this would attach, again, we have the instructions that'll describe all this, but you're gonna go to the rear of the vehicle into and find in the rear cargo area the connector that'll match this connector here. And then you'll plug that in. And then what you're gonna do is this box has a little weight to it, so you'll take the included double-face tape to attach that to a good flat surface.
Run your wiring here with the four-way on it, out towards the back of the vehicle. When you get to the back of the vehicle, you could take your cover, you can install your cover onto this and you could leave it on if you want, but when you're not plugged into a trailer, you can put that under to protect it. Now, if you notice this white wire, it has the island on it, it does need to connect to a good clean ground if there's one nearby. If not, they do offer a grounding screw that you can make your ground. To take up any slack in the wiring, they do give you some cable ties. And the last thing is you can see there's five different fuses here that you're gonna need to install. Again, the instructions will tell you where to install them at, but pretty much most of 'em are in the rear fuse panel. But that's gonna do it for a look at this CURT T-connector vehicle wiring harness with the four-way flat trailer connector.
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Ratings & Reviews
Nick S.
10/20/2025
I am glad it has been working great for you. The owners manual is the best help for the fuses, but I am glad you were able to find a previous comment to help you out. What are you towing with your Acura?
Mike L.
10/8/2025
What model year is your Acura? I'll have to check with Curt to see if there's differences between model years as far as the fuses go!
Gwendolyn Y.
5/4/2026
Hey Brock, I'm really sorry to hear about your experience with the harness. If you're not getting any sort of power to the 4-flat harness with the vehicle on and headlights on, I would recommend checking the fuses that the kit came with just to make sure they are still good and not defective in anyway. If they are bad fuses, let me know!
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Lazer S.
7/20/2026
Glad to hear the install was nice and easy, Mr. Mayor! Glad our videos helped out as well! Always nice to hear when they do! ^___^ What are you going to be towing?