To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your trunk, behind the tail lights on both the driver's side and passenger's side. You will need to remove some interior trim or carpeting to access the harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.
Once installation is complete, the 4-way flat connector will be stowed within your trunk or rear cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.
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Fits, easy install.
Parts arrived quickly and as discribed.
Fast service and good instruction.
Fast shipping, best price online, great product.
Will order from again.
Great wiring set. Worked perfectly for my Mazda CX9!
Product was delivered on time and instruction were easy to follow.
Purchased for a 2012 Mazda CX-9. The installation video and written instuctions provided were very helpful.
Online video made install easy. Works great so far, but only 1 day old & have not towed distances yet.
As advertised, install was straightforward, aside from bloody knuckles, value was average.
Fast Shipping, Product as promised, Online Videos made insatlation as easy as possible considering the Mazda was not that easy to work on. Product works as promised
The video instruction made it very clear, better than the written instructions that came with it.
Super easy install, I didnt have much experience with wiring before doing this, but the directions and color coding were exactly what I needed. The hardest part was running the wiring up to the battery, but even that wasn't to hard with a little help from my neighbor. Overall good quality and a great buy.
Simple connections but red and green harness to passenger side needs to be about 8 inches longer to make running the wire easier and neater.
This was overall very easy to install. The only pain was running the power wire underneath the car without touching anything hot or moving. I hope I did a good job...
I installed this on a Mazda5 and it works like a charm. It is hard to get at the connection points and that took some doing (and scrapped knuckles). I ran the power wire under the car and it seems to be working fine.
I installed the harness per the instructions.
O problem. The ground wire was loose on the trailer. This caused the new harness to blow the turn signal fuses in the car.
Replaced the fuse and fixed the ground. Works fine.
Snaps in. Well built. I tapped into the 12v power from the rear accessory outlet. I found that this is live all the time and has its own 15 amp fuse. Should work just fine and made the installation MUCH easier and cleaner.
Nice kit. this was by far the harder of the two (hitch) to install. I personally would rather have the 4 wire flat mounted outside the car by the hitch.
Was delivered promptly and took 30 minutes to install install the hitch.
The wiring harness was a bit more work (1 hour), but worked excellent as well.
I would like to have the 4 pin blade wire go through the grommet vs hanging out the trunk, so I may cut the wires and reattach; but I am anal retentive that way.
Installation was relatively easy. I decided to check operation before I closed up the panels on the car. Was I glad I did. The LH turn signal on the car was not working properly. After several attempts to disconnect and re-connect everything I decided to remove the unit and hook up the factory connectors. The turn signal then worked properly. Etrailer sent me a new unit and it works fine.
Product is good. Does what it says and is simple to install. Not easy to install because of the amount of breakdown necessary to get to the connectors. The only drawback is running the line to the battery. Difficult, dirty, and time consuming, but not the fault of the product. Wish there was some power source back there that would suffice.
I have the harness installed but did not had a chance to connect trailer and test the lights. I gave it a "Good" rating because the haness does not come with a grommet to use if one wants to permanently route the four pin flat connector under the car. I am not very happy about the routing through the tailgate opening when needed solution.
The wiring took much longer than the hitch installation. I liked the videos describing the installation, but I used both the 2012 & 2010 (I have a 2011) videos because they each had their own tips and different shots. The wiring connecting the two T-connectors could have been longer (they even mention it in the video). Also, snaking the black wire from the back to the front of the car underneath wasn't very easy. All in all though, it was worth it to get the wiring and save the money by doing it myself.
I didnt want to buy this harness as I didn't want to run a wire all the way to the battery. Well...I did. It works great. All the connections fit well. I fished the power wire through an existing hole below the spare tire. It took me 2 hours to lay under my Mazda5 and tie-wrap it up to the battery. If I would have been able to lift the car like at a shop I would have done it in 10 minutes. Anyway, glad I went with this unit. Lights are nice and bright on the trailer.
Overall a good product. The video instructions on etrailer are much better than those included in the kit. Generic for a range of Mazda vehicles. For the Mazda 5 and/or if you have a 12v outlet in the rear area, you can splice into it instead having to run a wire all the way up to the battery, and you can run the trailer pig-tail out one of the spare-wheel well drain plugs by cutting a slot in it and then resealing it. Makes for a completely hidden installation.
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