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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. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your rear cargo area, behind the tail lights on both the driver's side and passenger's side. You will have to remove some interior paneling to access this harness. Once you've plugged in the T-connector, run the hot lead to the power cable stud on the driver's side and connect the wire using the ring terminal. Then insert the included 15-amp fuse into the fuse holder.
Once installation is complete, the 4-way connector will be stowed in your trunk.
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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Average Customer Rating: 4.9 out of 5 stars (70 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. Powered ModuLite reduces strain on wiring system.The install manual is 8 years out of date! My 2024 Volvo XC90 Recharge is a very different vehicle under the interior covers.
The power lead uses butt connectors, which are crap, when all that is needed is a two pole connector to plug into the vehicle battery connection box on top of the starter
battery.
Please see attached photo.
It’s my experience that installing wiring harnesses takes much longer than advertised if you want to complete a more “finished” installation. That is not the fault of the product, but a choice by the installer. This T-One wiring harness came with all of the components necessary for an installation on a 2022 Volvo XC90 T6 Inscription. It is really just plug and play. The hardest part is getting access to the locations to make the easy connections. Be prepared to remove interior finish panels, or find someone with long, thin, and flexible arms (!!!).
I can highly recommend this product.
I have a 2019 Volvo XC 90. It took about 2 hours to install The Drawtite hitch and taillight kit. Taillights worked perfectly. No programming the cars computer. Total price etrailer: less than $300. Volvo wanted $1,600.
etrailers sales person: home run. Very nice.
Bought the harness to wire my volvo to pull a small trailer.
Installed easily and works well.
The directions are OK except you have to remove the "threshold" before you can remove the side panels. Also there is a little cap over the anchors that has to be removed to gain access to the hold down bolt. The battery on a Volvo 2019 is not in the engine compartment, but under the spare tire. Much easier to tie into.
Everyone told me Etrailer was THE place to shop, ask questions, etc. They were right. Will was excellent as I had a ton of questions. Ask for Will, he’s awesome!!
Simple install and looks great!
Installed easy and quickly, only problem was dripping the grounding screw. Could be my 77 year old fingers.
This was incredibly easy to install with the online video. The wires were all plenty long enough which is where a lot of companies cut corners since copper is very expensive. Thanks for selling a great product, it is appreciated.
Frankly working with etrailer is as easy as working with [online retailer], the one big difference is the personal interaction and the review/installation videos. I installed the wiring on my wife's Volvo just by watching the video and I am NOT mechanical in any way.
etrailer runs the way, I run my business. Customer-centric, communicative and attention to detail.
Well done!!
everything worked perfectly, i was very happy with how easy this was to install and how well it worked. it did not mess with any of my car sensors or anything so i am very please. i would totally buy again if needed. directions could be a bit better in the box but youtube had some quick and easy help to make it work well.
David M.
10/20/2020
works perfectly on our 2019 Volvo xc90, i am very happy with it.
Install was pretty straight forward. Like the ability to store the connector as I don't use it often.
Be careful loosening the bolt to the negative battery terminal. The little box connected to the negative cable is only soldered or brazed together and while loosening the nut mine broke in half, rendering my car undrivable. Of course in the video, the nut is very easy to get off and there is no mention of the fact this piece can break.
I'm also not sure why the loop connector doesn't fit the battery terminal when this harness is supposedly made for the vehicle.
Quality product and great customer serv ice!!!!
The wiring fits perfectly and is easy to install. I would have given 5 stars if the instructions were easier to read/see. I couldn't even tell what the pictures were because the quality was so bad. I had to take interior panels off and feel around to find where the plugs were.
This is an excellent product and the customer service for install is great. I will only use etrailer in the future.
Good price and high quality product. Install was very straightforward with the detailed videos at etrailer. Saved over $1000 versus dealer install!
Fairly price, clear instructions for the type of vehicle, easy to install. I used it with a to light up several different trailers with no issues
Great product and fairly easy installat ion.
Shipped before anticipated date. Arrived when projected after shipment. etrailer delivered to what they said.
I went to use it after a winter of not using it and all the lights on my trailer worked perfectly. I had a garage install it for me.
Easy installation! Worked excellent
Installed myself. Good video instruction! Perfect fit!
Easy to put on my car. Accurate instructions with all parts as required. Thanks
The installation video was spot on! Super straightforward.
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Nicholas
3/14/2019
Thanks for asking. I’ve only towed a small garden trailer a few times so far but I wouldn’t hesitate to haul a max load across the country and back. The Volvo suv the hitch is on stays garaged so I can’t give good feedback on how it would hold up in a salty slushy winter. Luckily we are in Georgia. : This was the third hitch I have installed on my vehicles and each one was perfect. If I end up needing another hitch I will be back. Thanks, have a nice day.