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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 - no cutting, splicing or tapping required. 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 in your rear cargo area, either behind the driver's-side tail light assembly or in the spare tire compartment. You will need to remove paneling to access this harness.
Once installation is complete, the 4-way flat connector will be stowed in an out-of-the-way location within your cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plug 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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Average Customer Rating: 4.8 out of 5 stars (354 Customer Reviews)
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 - no cutting, splicing or tapping required. Powered ModuLite reduces strain on wiring system.Installed on 1999 Subaru Outback.
The wiring harness was a simple plug in, by the left tailight, but a little tricky to get it to run out of the car. There actually was an oval rubber body plug up under the fender that you can just barely see from inside, and you can feel from outside, that I popped out and put a hole in for the wiring harness to go through. It was also a little tricky to get back in place with the wires in it, but it ended up working out nicely.
It really was an easy install, plugged in, wires run outside, fastened them to car underneath, and checked lights. It all worked,
Nice, well built harness. Nothing cheap about it. Plug and play. Perfect
Everything worked out perfect, your online instructions were spot on. Thank you and Happy New Year!
Customer Service really helped me out on this one. I had trouble locating the wiring harness in my 06 Forester. One quick call to customer service had me squared away. BTW-the plug on an 06 Forester is located by the passenger side rear light. It is bundled up next to several other connectors. See pictures.
The wiring harness worked fine with the trailer, 1and the installation was quick and professional. The wires and connector are cleanly tucked out of sight until we need them again.
Installation was easy and intuitive. This fit my 2008 Subaru Outback wagon with zero problems. The hardest thing was removing the muffler hangers, but a little penetrating oil and channel locks made that much easier.
EXCELLENT PRODUCT AND EXCELLENT CUSTOMER SERVICE.
Was exactly what I ordered and was plug and play install
This went on my 2006 Subaru Outback. It only took me 15 minutes to install. That included pulling out the side panels, connecting the wire and putting it all back together. Watch the video first and it is easy.
Hi Patrick, I received the harness today and had it installed within 5 minutes. I loved that I didn't have to cut, crimp, or trace any wires to get my Forester hooked up. Haven't had a chance to hook up with a trailer yet, but looking at the build quality, I don't have any reason to doubt it'll work awesome. Thanks,
Worked perfect the first time. Easy to install and good quality
Fast, accurate, easy service. Outstand ing
Arrived a day early, installed in less than 30 seconds, works just like I would hope. Delivers what it promises
One of the easiest to install automotive electrical accessories I've ever seen. It took more time to empty the Subaru Forester's trunk area of shopping bags, snow shovel, etc. than it did to make the actual installation.
The Subaru wiring connector was not too difficult to find. It was a matter of running my hand along the wiring harness found in the spare tire well until I felt a pronounced lump under the tape. On this particular car, the connector was in the right rear corner of the tire well.
Mark S - 06/13/2014Well constructed product, seems well made, but haven't had a chance to use it yet. The OEM installation instructions that came with the product were garbage. English, french and spanish were all stuffed on one side of an 8.5 x 11 page, and the one TINY photo provided for my car model didn't even come close to depicting reality... at least the reality that is my car. Throw the instructions out and watch the videos on the etrailer website and it will help immensely. I was disappointed though that the videos showed their installed product came with double sided tape to secure it, but the one i purchased has a bolt hole at the top and a zip tie, but no bolt or screw. The video and the instructions said nothing about where the product was supposed to zip tied to, or whether it should be zip tied or bolted down. The video and instructions should be updated to regard the actual product being sold. Had to knock off one of the stars. Everything else about the experience was fantastic.
Tom - 07/02/2019Highly recommend - easy to install and no noticeable impact on the turn signal flash frequency.
Product delivered within a few days. Extremely easy to Install. Took about 15 minutes total. Instead of sandwhiching the connector harness inbetween the rear cargo hatch/door and bumper area, I instead routed the harness through the rubber grommet located underneath the spare tire. This makes for a cleaner install in my opinion. A+++ for perfect fit, fast shipping, and easy install.
TPK - 03/23/2015Outstanding quality and so easy to install. The online videos are worth a thousand words...My install looks as neet as the one in the video.
Arrived quickly, worked perfectly. Using it today.
My friend Ann ordered this kit for me, everything is top notch, thank you. However, the problem I have has to do with my Subaru Legacy sedan, I have tried everything to find the vehicle's plug in to install the wiring harness, there isn't one that I can find. I have been in my past a VW mechanic for many years, so unless old age is confusing me, I wonder if you might have a plan. I was originally going to wire the harness in, then I saw how nice it is and thought what a great idea, just plug it in. So, for now I am still trying to find the plug in, they have it for the wagons but not for my 2006 sedan..so far.Thank you
Mike L - 06/14/2019Easy once connector is locatedI just installed a hidden hitch and the T-one wiring harness on my 2008 Subaru Outback wagon. The vehicle's trailer harness connector is not where the instructions for the product say it is nor is it where previous users have noted it to be on previous models. For instance, there is no longer a side access panel to the taillight assembly. What you do is open the hatch at the back and pop up the carpeted floor panel to the left of the spare tire compartment, on the driver's side. Just pull straight up - it is attached by three plastic connectors. Then pop up, in the same way, the panel made of cardboard and rigid foam that lies beneath that carpeted floor panel. This exposes a narrow slot at the bottom outer edge of the rear compartment, in the hollow metal part of the car between the outside metal skin and and inside trim. The slot is several inches forward of the tail light. A wire bundle was barely visible at the very rear of the slot, looking like it was running to the taillight. INitially I ignored it and kept searching. But when I ultimately got around to reaching my fingers in and pulling on this wire bundle (after searching everywhere else), it turned out to not be connected to anything, but was the trailer wiring connector that had been bent into a loop at the factory and tucked into the slot. The T-One connector plugs right in. I cut out a square in the cardboard and foam base panel to run the wiring through so that the transformer box, or whatever it is, on the connector cable can fit in one of the spaces between the foam dividers that are glued to the panel and support the carpeted top panel. This way, the carpeted upper panel lays flat when snapped back into place. The cable was then routed down into the spare tire well. I cut a slice into the rubber plug at the rear of the spare tire well, as suggested by a previous user, and then a hole at the center of the rubber plug just large enough to fit the cable without distorting the rubber. I then pushed the plug back in place, with several feet of cable and the connector for the trailer now outside the vehicle. A little silicone glue around the cable where it passes through the rubber plug sealed up the spare tire well to finish the job.
The dealership quoted me $200.00 to install wiring harness for my hitch. I watched your video, ordered the part and installed myself. I just needed to know where the connection was!!! Thank you. It was a great experience
Lynda D - 07/05/2015Sorry, no pictures. I like the hitch and harness so far, no problems with towing my utility trailer. The only thing I might mention is that the harness outside of the car is rather long (2 feet longer then what I need), but that's not a problem as I just wrap the excess around the hitch frame, and save it for if I ever need it longer for some reason. There wasn't room inside the car under the mat for the excess length.
I still remember how easy it was to install the hitch, just bolted up the the existing bolt holes in the cars frame. (Subaru Outback)
I was really pleased with how this mounted. The video instructions at etrailer.com were very helpful. As expected, it plugged into the Subaru connection perfectly, and it worked. My challenges were to find and choose the most weather-resistant place for a hole to run the wiring through (I chose an incision in a rubber plug, then put silicone on it) and non-interfering location to lay the wiring. I accomplished those things and had a good outcome. ( I have since sold the car, so can't comment on longer-term usage).
Arrived as described and plugged in easily; but that's the end of the good news. Didn't work at all the first time I tried to use it. Voltmeter indicates that power comes out of the car, fuse was fine, but no power reached the flat 4 connector.
I didn't test until over 30 days past arrival, so etrailer won't replace the plug. I had to pay to send it for a warranty return, it's been there for 5 days now, and is currently somewhere in the warehouse waiting to be dealt with. After long waits on hold no specific estimate on timing for return.
I'm out return shipping, original cost, and either can't use my trailer or have to buy another harness.
Summary:
Bad product out of box, OK maybe just a fluke. etrailer customer service not great. Annoyed customer.
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