To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Wiring a trailer doesn’t have to mean digging into factory wiring. This Curt T-Connector plugs right into existing vehicle connectors, creating a 4-flat trailer plug without cutting or splicing any wires. It’s a true plug-and-play setup that gets your trailer lights powered up quickly and reliably.
This harness includes a powered converter that draws power directly from the vehicle battery. That design keeps the trailer lights working properly while protecting sensitive vehicle electronics. The harness also comes with the wire, fuse holder, fuse, and hardware needed to make the battery connection so everything runs smoothly once installed.
The 4-pole flat trailer connector provides running lights, turn signals, and brake lights—everything you need for light-duty towing. It connects easily to most utility trailers, campers, and small boat trailers so you can tow safely and stay visible on the road.
The harness routes cleanly through existing trim panels and grommets for a hidden, factory-style finish. Once installed, only the 4-flat plug is visible when you need it. When not in use, it tucks away neatly out of sight so you keep a stock look with no dangling wires.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Product worked great, only thing I would add to make product a 5 star would be to include a snake for getting big connectors to the brake lights.
Smooth install. The videos on the website make it easy. Great product!
Had to be shipped from a different location than the hitch, so it took a few extra days to receive, but it showed up in a reasonable timeframe and was packaged well. Worked on a 2022 Pacifica Hybrid with led tailamps.
Excellent fit. Working with no hoist on concrete floor took me 1 1/2 hr. working alone. Fit just as advertised.
——————-—————————————————————————————
Electrical wiring a bit more involved, a hoist would be good. The challenging part is running the 12 volt wire to the battery with the removal of the underbody panels required. Still excellent product.
Both videos helpful.
A bit of a challenge to install, but the available video is very helpful.
Hint: install this during the hitch installation, while the underbody panel is removed.
Product fit as described. The only reason I gave 4 star instead of 5 is I wished it would've came with 1 or 2 extra butt connectors. Good product, good fit, works great.
This is a good wiring harness and worked well right off the bat after installation. It does requires some tricky work with fish wires that is quite difficult. Five stars for function, three stars for a rather difficult installation.
My mistake the first one I ordered but thanks to the folks at etrailer I was able to purchase the rignt on and exchange the wrong one at the same time and get my hitch installed just in time, thank you etrailer!
Not happy. In about 6 months the left turn signal failed to work. Mechanic traced it to a fault in wiring harness box. Notified you of failure and you said I should contact the mfr directly. Sent them an e-mail describing the problem. Never hear back from them. Had to buy new wiring harness and install it.
Although the area through the rear quarter of my 2020 Pacifica was tight, I was able to get the connector harness installed. Wire length was OK, but green wire could have been about 4 inches longer. This would have made control box placement a little more flexible. This is my second Curt product as I installed a trailer hitch and wiring harness on my 2009 Chrysler van 13 years ago. Easy install and great product!
I purchased the trailer hitch from etrailer and they installed it for me. I am completely satisfied with both the hitch and the installation quality. When ever I need anything for my vehicle I always check in with etrailer FIRST. They're unbeatable.
Looks great. Tucked in nicely under the car.
I have installed a handful of Curt aftermarket vehicle wiring harnesses in various vehicles we have owned over the years. '98 Ford Ranger, 06 Hyundai Tucson, 2007 Tacoma, 2012 Subaru Outback and now this, our 2020 Chrysler Pacifica. etrailer is an awesome web store. Curt's stuff is pretty good. My only complaint with the product itself is that the actual wires are a little short. I had to really take the shortest distance between two points to reach both tail light housings while remaining under the car. It's like they used a tape measure to determine the length of the harness and just ran with it. I had to run the driver side wire (second one I ran) two times because the first time I went around the outside of a frame component and ran out of length. It seems like it would be relatively cheap to give you another couple feet of green wire for ease of installation...That's why I gave this product four stars.
The following is more of an indictment of Chrysler. I am compelled to write this out to save all the other Evening Driveway Warriors out there some time and aggravation. The installation of this wiring harness is diabolically hard. Start by removing the undercarriage panel at the back of the vehicle. There are like 2 dozen 8mm screws and 10mm plastic nuts. Next, pop the tail light out using a T27. Then you will need a fish tape. Don't try to pull the harness components all the way up from the ground through the opening in the tail light housing. It's a maze, you can scarcely see through this labyrinth. If light can't pass through, how are you going to jimmy through 6 wires with bulky connectors on each end?
Instead, remove the T27 screw near the rubber rear hatch bumper and pry the associated body component away. Then sneak your fish tape in down there. You should be able to see the driveway from up here. Once you get the harness component up to that point, it's fairly simple to fiddle the wires up through the opening under the taillight housing. If you try to do this in one step, there is a bunch of crap back there (factory looms, little steel bulkheads, plastic tabs) that WILL, I PROMISE, snag your harnesses and cause you unspeakable harassment. You'll pull hard to advance it, then find that it's jammed and you can't pull it either way! Learn from my mistakes and save yourself some time.
I ran the power lead under the car's undercarriage panels and up into the engine bay by taking more 10mm plastic nuts and 8mm screws out. I finished the job using a fishtape from above. There is plenty of black wire to be picky about where you run it.
Worked as expected
These are wonderful, if I could do 6 stars I would. To install the wiring you don't need to rack your brain to try and figure out where everything goes. It's very simple. We got everything we needed, and everything that was supposed to be there was there.
I haven’t had a problem with it since I had to modify the harness to work on my 2021 Chrysler Pacifica. I had to switch two wires to get all the lights on my utility trailer to work. It took several attempts to get ahold of someone who understood what the problem was.
This was an easy install. Especially if you go ahead and go out to YouTube and use the e-trailer video on how to install it. I can't speak to its longevity. But on the lights are up and working and I am stoked.
Frank
4/20/2024
All is well a year later. I am glad I went with this easy hook up solution.
Arrived on time in good condition. Installation instructions were accurate and easy to follow. My vehicle would have been very difficult to do without access to an automotive lift. A lift and a helper made it go very well.
Worked perfectly,plug and play once I figured out how to run the wires.
The wiring harness was compatible with my vehicle but the green wire that goes to the passenger side tail light is too short. There is only one way that it fits that you have to do by trial and error. This wire should be 4-5 inches longer. The self adhesive pad that should stick the box under the car was 200 years old and was no longer sticky on either side. I'm guessing this was very old stock. Other than that the kit was as promised and worked the first time after installation.
The instructions are a little vague. However, the videos are very helpful.
Not having access to a mechanic shop to raise the car, it was difficult to run the black power wire to the battery. This is because there is not much clearance under the car and the whole underneath is covered with panels. I assume the panels are for protection fron the elements. I was able to use a long fish wire to pull the wire through without removing most of the panels. The harness wires are cut to specification so make efficient decisions regarding routing the wires. Everything worked when tested. Overall it took about 3 hours. However it is not due to the harness but because of the difficulty working with the Pacifica. I would definitely buy it again.
did not get double sided sticky pad and installation video was incomplete. show the struggles.
Clayton
7/3/2025
it works. hangs a little awkward but I just wrap it around the hitch and call it good
Not as easy to install as done in video. Didn’t come with fuse, 2 sided tape was poor quality. Need more zip ties and than given, and black power wire wasn’t as long as in the video.
Said this worked for my vehicle on etrailer’s search engine but did not support the running lights which turned out to be an issue at the border on a trip from MI to Canada. Etrailer left me hanging after multiple phone calls and they did zero to help solve the issue. Had to buy another controller after they blamed me for their search results…tough pill to swallow for this surgeon. Shopping elsewhere in the future.
Works instructions are good, plug for trailer is slightly off and requires me to lie on my back and fiddle with whatever I’m trying to plug in. I have to hold the back of the plug to keep it from being pushed out of the Curt plug bracket I’m using. For as much as it costs it should work better
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Glenn
7/4/2024
The hitch and wiring are functioning as they should. I haven’t had any issues with it.