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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
2000 Pontiac Sunfire
CURT

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

Part Number: C56320
In Stock
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$71.73
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2000 Pontiac Sunfire

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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 C56320 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 (135)
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CURT Custom Fit Vehicle Wiring - C56320

  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Plug and Lead
  • Powered Converter
  • Hidden

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.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind your tail lights. You will have to remove the trunk floor coverings, storage trays, rear scuff panel, trim panel, and tail lights to access this 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.


Once installation is complete, the 4-way 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 plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


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 the trailer. This converter combines 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.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



56320 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56320 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

135 reviews
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.

by:

I'M very happy that this was finally done by the VA. I can get around much easier with my wheelchair.
Thank you

Brooke M. profile picture
Etrailer Expert

Brooke M.

6/22/2025

That's awesome, Perry! So you're a Veteran? Thank you for your service! Which branch of the military did you serve in?



by:
Ford Escape

2017 Ford Escape. Self-installed in about 1 hour, works great with UHaul trailers.



by:

YOUR HITCHES ARE TOP NOTCH AND PROVIDE THE VETERANS WITH A GREAT PART TO GETING THEIR SCOOTERS TO BE CARRIED AROUND. IT HELPS MAKE THEM MORE MOBILE.
tHANK YOU



by:

it is a pleasure to talk to your reps, they are so positive and upbeat. Great
group of people and well trained.



by:

Awesome way to hook up your wiring by inter-connecting everything w/ in the same wiring harness as made from the Factory, I was impressed w/ this particular Application, as everything mated up perfectly, etc. - jbm



by:
Ford Escape

The UPS driver just delivered the package containing this order, which is a day earlier than it was scheduled. So I am well pleased with my experience with etrailer, basically from start to finish. Kaitlyn on the chat service was awesome; she steered me away from ordering the wrong harness for my vehicle and then sent me a link listing all of the harnesses available for my Ford Escape. Additionally, your prompt handling of my order was impressive, leading me to believe I am dealing with a company staffed by professionals. Thank you. and I will send a photo, probably tomorrow, of the installed harness. And of course, I gladly will recommend your company to others.



by:

Easy install works perfectly



by:

Very happy with my order. It took a bit of know-how to install, but the instructions were plenty clear. Works great.



by:

I was satisfied with shipping speed. Item was easy to install and is working as described. The video provided on etrailer site was very helpful in the installation, mainly because it showed how to install it on the make and model of my car. The video is the main reason I ordered from etrailer.

Thomas profile picture

Thomas

10/5/2021

I have had no problems with the t connector. I did not connect the hot wire to the battery. I connected an old style cigarette lighter plug to the power wire along with the included fuse holder which I plug into the 12 volt power outlet in the storage area of my 2018 Ford Escape.This provides plenty of power to power the lights on my boat trailer which is all Leds. It would probably power about any trailers lights. I store it under the spare tire cover when not in use.

Heather A. profile picture
Etrailer Expert

Heather A.

11/3/2021

The power wire must be run to the battery as specified in the installations. The rear cigarette lighter outlet cannot be used for this purpose as it does not have the proper rating so it could short out your wiring or your vehicle's electrical system.


by:

I bought one that lasted one ride and the module stopped working. I bought the same product a second time that is currently working.



by:

The wires from the 7-way are too long so the weather protection cover doesn’t reach the 7-way plug. The wires show about an inch. Can I return it?
Attach any photos of the product you would like



by:

Very happy with the product, love the way it looks and only the tongue can be seen. The how to video was instrumental and well-made. The entire process from Ordering to this review has been excellent! What a great company!



by:

Works well. Plug/connector is a little tight to trailer plug. Routing the wire to battery is a little tricky. Wish it would connect to fuse block in the trunk



by:

I have towed my utility trailer several times, and couldn’t be happier with the hitch. I was thinking about buying a pickup truck, but by installing the hitch, I got the hauling capacity I needed for a lot less money. I also plan to buy a cargo carrier for deer season so I don’t have to haul game inside my Escape



by:
2017 Ford Escape

The wiring harness went in without any problems. The the instructions were clear and accurate, great product.

Otmar R. profile picture

Otmar R.

5/29/2019

Without any problems



by:
2017 Ford Escape

Product is perfect. Installation on a 2017 Escape is a pain, but generally straightforward. There is no way around that as the escape was not built with a factory harness trailer plug outlet. Have to run a separate power line to the battery under the hood. It’s all accurately outlined in the instructions and installation videos.



by:
Ford Escape

Wiring harness installed just fine. Took twice as long as putting the hitch on though as much to take apart. Video helped but my Escape had more accessory items wired in back than what video showed so took a bit longer. Hardest part was getting the module power wire up to battery in engine compartment. Would be nice if wire protector was included for going to flat connector at rear of car.



by:

Got the mostly hidden trailer hitch . Even though it was a bit harder to install I definitely feel it was worth it. I feel it looks better than the factory models! The lighting install went well also. All directions were very clear.



by:
2017 Ford Escape

The kit was pretty good, but I didn't use the cheesy butt splices, opting to use heat-shrink, waterproof ones. Instead of gluing the converter box on with the provided mounting tape, which doesn't last in my experience, I zip-tied it to the plastic hangers that hold the wire bundle leading to the left rear light assembly. Also, if I had it to do again, I'd check to see if suitable power for the powered converter box could be found at the fuse box in the right rear of the car--running the wire to the battery was a huge pain, and seems like overkill.

The instructions were missing a page. I was able to download a pdf, but it would have been nice if they had been complete.

Buy extra zip ties before you start. It takes a lit to secure the power wire.

Bottom line, this is a good kit. You won't regret getting this product.



by:
Ford Escape

did get the receiver on date that i was told.
box had holes in it that were the size of a softball , not the fault of etrailer. little paint missing.
i was happy they put the wiring in bigger box, so it did not fall out.
i think it was my 3 hitch off them.
one thing i figured out, put hitch on escape ,put the front in first and rolled it up in.
40-45 mins done,once i thought to roll it in.
wiring little bit longer,but all done.



by:

Wiring harness delivered quickly amd complete. With the help of a youtube video was easy to install. Great product



by:
2017 Ford Escape

I love these plug and play wire harnesses . back in the day I had to splice into the factory wiring to wire up a 4 way flat plug. Today it is made easy. Came with good directions and easy to install.



by:
2017 Ford Escape

Ford Escape trailer wiring kit made trailer lights installation very easy, and it works great.
Highly recommended.



by:

I ordered the hitch and electrical harness together. Both arrived the very next day in perfect condition. Installation was completed the next day with assistance of a neighbor to help hold up the hitch while attaching the bolts on each side. All the rest went smooth and the hitch looks great! Very pleased at this point!



by:

Very easy to install. The plugs are so easy to use vs splice connectors. I don't tow often so I store the plug inside. That works great, the plug to the trailer should last a lot longer that way.


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Show More Reviews

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  • Installation of Curt T-Connector Wiring Harness on a 2017 Ford Escape
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Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Chelsea B
Written by:
Chelsea B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Brent H
Test Fit:
Brent H
Employee David F
Test Fit:
David F

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