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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2001 Chrysler Sebring
etrailer Installation
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CURT

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: C56405
In Stock
$99.58
Retail:$172.95
You Save: 42%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2001 Chrysler Sebring

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56405 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (24)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C56405

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow-Ready Setup: 4-pole flat connector powers trailer turn, brake, and tail lights.
  • Plug-and-Play Install: T-connector plugs into factory ports—no cutting or splicing.
  • Reliable Power Feed: Powered converter draws directly from the battery for clean signals.
  • Fuse Protection: Uses a 15-amp fuse to safely handle trailer lighting load.
  • Hidden, Clean Look: Wiring tucks behind trim for a factory-style finish.

Features to know about

Installs Without Cutting or Splicing: Plug-In T-Connector Design

This harness skips the guesswork of tracing or cutting factory wiring. The Curt T-Connector plugs directly into the vehicle’s existing tail light connectors to create a 4-pole flat trailer connection. It’s a clean, hidden install that keeps the factory wiring untouched and ready for towing lights right away.

Reliable Power for Trailer Lights: Powered Converter with 15-Amp Fuse

The powered converter draws power directly from the vehicle battery through an integrated 15-amp fuse. That keeps the trailer lighting signals consistent and protects both the harness and the vehicle circuits from overload. It’s built to handle running lights, turn signals, and brake lights without exceeding circuit limits.

Simple Setup from Start to Finish: No Tow Package Required

Even if the vehicle didn’t come with a factory tow package, this harness still provides a ready-to-use trailer lighting connection. The included power lead runs up to the battery without permanent modifications, giving you a dependable setup that works just like factory wiring when you need it.

Clean Look When Not in Use: Hidden 4-Flat Connector

Once installed, the harness stays out of sight until it’s needed. The 4-flat connector tucks away behind trim panels or under the bumper for a neat appearance and easy access when it’s time to hook up a trailer.

56405 Curt T-Connector - Surface Mount Technology - 4 Wire

Installation Details C56405 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.8

24 reviews
5 Stars
(20)
4 Stars
(4)
3 Stars
(0)
2 Stars
(0)
1 Star
(0)
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by:
About as easy of an install as I could have asked for. I did deviate from instructions though, for the constant power wire I did not want to have a constant draw so I spliced it to the 12v power outlet in the trunk, also beat running that wire to the front of the car to the battery, and yes the trailer lights work just fine this way if that was a concern.
by:
2008 chevrolet HHR
Fit perfectly into our 2008 HHR Panel.
by:
Excellent, great fit. The only reason for 4 stars instead of 5 is that I would have preferred not having to run a power line all the way to the battery at the front of the car. It always makes me feel a bit sketchy that the wire will catch on something even though there were plenty of zip ties to secure it. Also by having the power line it is immediately apparent that there was electrical work done to the car which can potentially void the factory warranty if there is an electrical failure.
Heather A. profile picture
Etrailer Expert

Heather A.

6/23/2021

Thank you for your review. As long as you keep the wiring away from moving parts and heat with a lot of zip ties then you shouldnt have any issues. There is a law called the Magnussen-Moss warranty act that states, in part, that if you install an aftermarket part on your car then it will not void the warranty unless that part caused the problem.

by:
2020 Volkswagen Golf
Installed, but have not yet towed. Etrailer video Very helpful, especially as demo’ed on same model an year as mine.
by:
Volkswagen Golf
The wiring kit is working perfectly after 1 year of use! I tow my dirtbikes to the trail with my Golf a few times a month and the lighting always works! Installation was a breeze while following along with the video. I did take some extra steps and ran the power wire under the interior trim. I wish more sites would take after etrailer with the video instructions and customer support. I initially ordered the wrong harness and the team made getting the correct replacement a breeze!!
by:
2019 Volkswagen e-Golf
2019 eGolf - Worked well, tapped into the rear 12v socket for power to avoid going under or through the car to the battery. THEY WON'T TELL YOU BUT THIS WILL WORK ON A EGOLF
by:
VW GTi 2020 install was a snap what a headache remover just gonna rewire the trailer and plug n go. VW dealer couldn’t help me out wanted to send me to an RV Shop to get fixed up. That’s when I did some searches n etrailer popped up and all my troubles are gone DYI easy peasy ready to roll n tow
by:
2020 Volkswagen Golf
Works great, but the install instructions are BAD, video is not great either. Install per instructions looks DIY, and there are better ways to route wire and hook up to battery that look way more stock/ factory. Will need crimp tool to do proper wire connections.
by:
Plug and play.
by:
One Year Later...
The light kit is stil
l working just fine. Can't complain at all.
by:
Excellent customer service Thank you Andrew
by:
Volkswagen GTI
PERFECT for my 2020 GTI. Easy install and works a charm.
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2018 Volkswagen Golf
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Perfect fit
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2019 Volkswagen Golf
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2020 Volkswagen Golf
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2017 Volkswagen Golf
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2019 Volkswagen Golf
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2018 Volkswagen Golf
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See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Comparing EcoHitch And Stealth Hitches Trailer Hitch Receiver For a 2019 VW Golf GTI
    You are correct that both the EcoHitch # 306-X7375 and Stealth Hitches # SH79ZR will both fit your 2019 Volkswagen Golf GTI. The EcoHitch # 306-X7375 is constructed using an alloy which is made of recycled materials and combines aluminum, steel, and stainless steel. This 2" receiver has a maximum tongue weight rating of 300lbs and maximum trailer capacity of 2,000lbs. The removable receiver tube bolts to the main body of the receiver that stays under your Golf. The Stealth Hitches #...
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  • Recommended Trailer Wiring Harness For A 2016 Volkswagen Golf GTI Mk7
    Though The Curt harness # C56405 is not confirmed for you 2016 Volkswagen Golf The ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT is confirmed. This modulite harness includes the circuit protection to safeguard itself and the tow vehicle from harmful electrical shorts and mis-wire situations. This harness powers the trailer's stop, turn, tail and running lights directly from the tow vehicle's battery and offers a no-splice...
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  • Can Trailer Hitch be Installed on 2019 Volkswagen Golf TSI
    What you are referring to is actually pretty common when it comes to smaller vehicles. It isn't surprising to see that UK versions are given the thumbs up to tow while US versions are discouraged from towing and I'm not sure what the reason is. I will say that quite a few people do still get trailer hitches installed on their Volkswagen Golf and are just fine. I can't really go against what your owner's manual says but if you do decide to install a trailer hitch the Curt Class I part #...
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  • Can the Rear 12 Volt Socket on a 2018 Volkswagen Golf be Used to Power a Trailer Light Harness
    I really wish that I could tell you that the 12 volt power source you have in the rear compartment of your 2018 Volkswagen Golf is suitable for the Curt T-Connector Vehicle Wiring Harness part # C56405 but it is not. The keyed circuit is not the issue but rather the power draw of the harness. This harness requires a 15 amp fuse and as you mentioned the power source in your rear compartment is only 10 amps. Therefore, it is very likely that with multiple signals active like the running lights...
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  • Will The Curt Hitch And Wiring From A 2020 VW Jetta Also Fit A 2021 VW Jetta?
    I will start by saying that the Curt Hitch # C11540 will fit the VW Jetta line from 2019 to 2021 as long as it is not a GLI model and or with dual exhaust. As long as don't have one of these, you are good to go. The wiring is a different matter though. I checked with Curt and they do not offer a custom fit wiring harness for this year range of Jetta, so I recommend going with the Tekonsha T-One Vehicle Wiring Harness # 118791. This is a direct plug an play kit, but you will need to run...
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  • Trailer Hitch Recommendation for 2018 Volkswagen Golf GTI
    For your 2018 Volkswagen Golf GTI the hitch I recommend is the Curt hitch part # C11412 because the hitch has enough towing capacity for a small trailer and is made in the USA. I attached an install video link to this page for you to check out as well. For a ball mount Curt requires the ball mount part # C45521 and then the hitch balls part # A-82 for a 2 inch ball or # A-80 for a 1-7/8 inch ball. For trailer wiring the Curt wiring harness part # C56405 is recommended as it is a custom...
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  • What is the Height From Ground to the Top of Drawbar on 2018 VW Golf GTI?
    The Draw-Tite Sportframe Trailer Hitch Receiver # 24979 will have a height of approximately 13" to the inside top of the receiver tube on your 2018 VW Golf GTI. The center of the bolt hole will sit approximately 4" from the outermost point of the rear bumper. The T-One Vehicle Wiring Harness 118787 is only confirmed to fit the Golf R Models. For your GTI you will need the Curt T-Connector Vehicle Wiring Harness # C56405 for a 4-way flat connector. The EcoHitch Hidden Trailer Hitch Receiver...
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  • Trailer Hitch For 2019 Volkswagen Golf GTI That Does Not Require Fascia Trimming
    The hitch option for the 2019 Volkswagen GTI that does not require trimming or modifying the bumper is the EcoHitch Stealth Trailer Hitch Receiver part # 306-X7375. However, this installation may require possible minor exhaust modification, it does not require bumper or fascia trimming. We do not carry an option that does not require some type of trimming whether it be bumper or exhaust on the GTI. The Stealth hitch is a great option visually because is it completely hidden once installed....
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  • Will Curt Wiring Harness Fit 2021 Volkswagen Golf GTI Autobahn
    Yes, you can be confident that the Curt # C56405 will fit your 2021 Volkswagen Golf GTI Autobahn. Sometimes manufacturers like Curt haven't had a chance to test fit something so their fitment is behind. We make sure it is a confirmed fit before listing it that way on our site. The connections are the same so it will work with the 2021 like yours. I have attached an installation video below for your reference.
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  • Fixed Ball Mount for 2018 Volkswagon Golf
    I would be glad to make a recommendation and help you set up a ball mount for your 2018 Volkswagen Golf. I recommend the Curt Ball Mount for 2" Hitches - 5" Rise, 6" Drop - 8,000 lbs - Aluminum item # C24WR. You will also need a hitch ball the Curt 2" Hitch Ball item # A-82 is 2 3/4" tall. This ball and ball mount fits your EcoHitch item # 306-X7375 2" hitch receiver and has a 5" rise. I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # C56405....
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  • Wiring Harness and Hitch Recommendation for 2019 Volkswagen Golf GTI Rabbit
    We do have a 4-pole flat trailer connector for the 2019 Volkswagen Golf GTI Rabbit with Curt 4-pole flat part # C56405. We installed the Curt wiring harness on a 2018 Volkswagen Golf GTI. Since the 2019 GTI Rabbit is just a trim package upgrade, the wiring harness fits the same. I have attached a video for your reference. If you need a hitch for the Rabbit, I recommend EcoHitch part # 306-X7375. The EcoHitch's cross tube is completely hidden behind the rear bumper. The square hitch receiver...
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  • Is Trimming Required on the Draw-Tite Hitch for 2018 Golf GTI Autobahn
    I checked the installation instructions on the Draw-Tite Sport Frame Hitch Receiver # 24979 and there will be some minor trimming of the fascia required during the installation. It also notes that you'll have to disconnect the backup sensors during the installation, but it won't interfere with it functioning once the hitch is installed. We haven't completed an installation of the Draw-Tite # 24979 hitch on a 2018 GTI, but we have installed the EcoHitch # 306-X7375 and the installation processes...
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  • Correct Size Fuse for Curt T-Connector Vehicle Wiring Harness On 2018 - 2020 VW Golf GTI
    The Curt T-Connector Vehicle Wiring Harness part # C56405 which is a fit for a 2018 - 2020 Volkswagen Golf GTI uses a 15 amp fuse. Please keep in mind we do offer the Curt Powered Converter Wiring Kit part # C55152 which is a replacement power line kit that has the fuse you need.
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  • Trailer Hitch for 2018 VW Golf GTI Autobahn with Parking Assistance
    I have a good solution but the EcoHitch Hidden Trailer Hitch Receiver part # 306-X7332 is not a fit for your 2018 VW Golf GTI Autobahn. That is specifically for the R model of the Golf. Instead use the EcoHitch Stealth Trailer Hitch Receiver part # 306-X7375. This hitch is designed for your vehicle and offers the removable receiver tube so you can have a very nice clean look if you choose to when the hitch is not in use. As far as the parking assist there have been no reports of the hitch...
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  • Will The EcoHitch Stealth Receiver # 306-X7375 Fit a 2019 VW Golf GTI Aftermarket Exhaust System?
    The 2" EcoHitch Stealth Trailer Hitch Receiver # 306-X7375 was designed with the stock exhaust in mind for your 2019 Volkswagen Golf GTI. As this receiver mounts to the rear frame at the rear bumper I do not see any reason an aftermarket exhaust would interfere with this receiver since it is completely hidden behind the rear fascia and does not mount where the exhaust mounts. I recommend installing the Curt T-Connector Vehicle Wiring Harness # C56405 when you install the receiver. This...
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  • Trailer Hitch Recommendation for 2018 Volkswagen Golf GTI
    For your 2018 Volkswagen Golf GTI the Curt hitch part # C11412 is a confirmed fit and would be the hitch I recommend. It is a USA made hitch that is custom fit for your vehicle with great towing weight capacities. For trailer wiring you'd then want the Curt part # C56405 which is also a confirmed custom fit that won't require any splicing or hardwiring. For a ball mount you'd then want the part # C45521 and for hitch balls you'd want the part # A-82 for a 2 inch ball or part # A-80 for...
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  • Best Trailer Hitch for 2018 VW Golf
    The best trailer hitch for your 2018 VW Golf is the Curt # C11412 because it does not require any trimming of the rear fascia on your vehicle. To add wiring which will give you a 4-way connector and allow you to power your trailer's lights you need Wiring Harness # 118646 unless your '18 Golf is the GTI; for that you will need Wiring Harness # C56405. The correct ball mount for your Golf with this hitch is the Curt # C45521 and will require Pin and Clip # F-4 as well as either 1-7/8"...
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Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Ronnie R
Written by:
Ronnie R
Employee Shane H
Test Fit:
Shane H
Employee Jonathan Y
Video by:
Jonathan Y
Employee Michael B
Video by:
Michael B

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