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  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2004 Mini Cooper
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Hopkins

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: HM11141304
In Stock
$69.22
Retail:$96.99
You Save: 29%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2004 Mini Cooper

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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. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM11141304 or order online at etrailer.com. Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (8)
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  • Videos (1)
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Hopkins Custom Fit Vehicle Wiring - HM11141304

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Plug-and-Play Install: Connects directly to vehicle plugs for fast, no-splice setup.
  • Tow Without Factory Prep: 4-pole flat connector powers trailer lights for safe towing.
  • Protects Vehicle Wiring: Powered converter isolates circuits to prevent overload damage.
  • Clean, Factory-Style Fit: Uses existing trim paths for a neat, hidden wire route.
  • LED-Ready Compatibility: Works reliably with standard or LED trailer lighting systems.

Features to know about

Installs Without Cutting or Splicing: Plug-In Design

Wiring for trailer lights doesn’t have to be complicated. The Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector uses factory-style plugs that connect directly into existing vehicle wiring. There’s no need to cut, splice, or guess at wire colors. Just plug it in and you’re ready to go.

Delivers Power Safely: Built-In Powered Converter

This harness includes a powered converter that protects the vehicle’s sensitive electronics while supplying a steady signal to the trailer lights. It keeps the circuits separate so you get reliable operation without overloading your vehicle wiring system.

Ready for Standard Trailer Lighting: 4-Flat Connector

The 4-flat connector provides the basic trailer lighting functions—running lights, turn signals, and brake lights. It’s the standard setup used on most small and mid-size trailers, so it connects easily with common trailer plugs.

Works When There’s No Factory Tow Package: Complete Vehicle-End Solution

If your vehicle didn’t come with a tow package, this harness gives you everything needed on the vehicle end to power your trailer lights. With its plug-and-lead setup and weather-sealed connectors, it delivers a clean, durable wiring solution that’s ready for towing right away.

Specs

Electrical Specifications

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit

Warranty

  • Warranty: 90-Day limited warranty

Note

  • This will not affect how the tail lights on your vehicle operate.

11141304 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11141304 Installation instructions

This Product Fits The Following Vehicles




Video of Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Custom Fit Vehicle Wiring - Trailer Hitch Wiring - HM11141304 Review

Today we're going to be taking a look at the Hopkins plug-in simple vehicle wiring harness with the four-pole flat trailer connector. This product fits certain years of the Chevrolet Captiva Sport. You can use the vehicle fit guide located at Etrailer.com to ensure that this is a fit for your vehicle. It's going to provide a four-way flat connector at the back of your vehicle to power your trailer's signal lights. This is compatible with five-pole, six-pole and seven-pole adapters. Adapters are sold separately.

It does come with a dust cap for the four-way flat connector. That way you can cover up the connection points whenever your plug's not being used. The black box is the included taillight convertor. This ensures that your vehicle's wiring matches that of your trailer's. The power module connects directly to the vehicle battery through the wiring to avoid overloading your vehicle's electrical system. This unit is designed to connect quickly and easily.

It does come with detailed installation and instructions that are going to help walk you through that process step by step. Basically, what you'll need to do is locate your connection points. Those are going to be in the rear cargo area, and plug in your connectors. The connectors with the yellow wiring go to the driver side. The connectors with the green wiring go to the passenger side of the vehicle.

Locate your connection points, plug these in. These plugs are going to match up perfectly with the ports on the vehicles, and they're going to snap lock together for a nice, tight, secure fit. Once you get those done and those connected, you can make your ground connection. It's going to be your white wire, has a ring terminal pre-attached to it. You want to get that grounded to a suitable grounding location with the included grounding screw.

Then you'll need to mount the convertor box to a nice, out-of-the-way location. It's got a mount located on each side. That way you can get it secured, out of the way using the included cable ties. Next, you'll need to run the hot lead 00:01:39 to the vehicle battery. That's the red wire coming out of the convertor box. It's got a butt connector on there. This attaches to one end of the bundle of wiring. The other end of the bundle runs all the way up to the vehicle battery and gets connected to one half of the fuse holder here at the butt connector. The other half of the fuse holder gets connected to the positive post of the vehicle battery. It's got a ring terminal pre-attached on there. Then the unit also comes with your 15 amp fuse, goes directly in the fuse holder. It's got the cap that goes over it to keep it safe and protected. Once you have that done, you can secure any excess or slack in the wiring with the included cable ties. Then, your four-way connectors are going to be stowed beneath the vehicle near the trailer hitch. We do recommend using a mounting bracket to keep the connector secure and easily accessible. Mounting brackets are sold separately. It's also recommended that you use a small amount of terminal grease on all your electrical connections, like the plugs on the vehicle and four-pole connector itself. The grease is going to help prevent corrosion to the terminals and the packet of grease is included with the kit. When it comes to the maximum amperage for the stop and turn lights, we're looking at three amps per circuit. For the taillights, it's six amps per circuit. That's going to do it for today's look at the Hopkins plug-in simple vehicle wiring harness with the four-pole flat trailer connector.

Ratings & Reviews

4.9

8 reviews
Review sort icon
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.

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Good to go just what I expected.



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Installed well, works just fine



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Worked perfect. Only issue was running power wire to battery. Not hard, but wanted to hide it well without pinching it. Good product, working perfect.



by:

Works great . Quick and simple installation. The how to videos you provide online gave me the confidence to attempt this project.



by:

One of the Best online ordering experience I have ever had the pleasure doing. Barry handled the transition from the beginning till the end and not knowing much about what I was talking about,he walked me though the entire process. It says a lot about a company when their employees take such pride and knowledge in their job performance.
Again it was my first time working with your company and it definitely wont be the last
Thank you so much for all the help the great product and the fast delivery



by:

The sales representative was very knowledgeable in regard to determining the precise hitch and harness to install in my vehicle and I have had no service issues since. I used it to take a small boat and trailer fresh water fishing which has enriched my life immensely. Thank you for quality service and for a quality product at a reasonable price. Other quotes were higher for the same product or for a product less suitable.


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See what our Experts say about this Hopkins Custom Fit Vehicle Wiring

  • Location of Factory Wiring Harness on a 2014 Chevrolet Captiva Sport
    I have attached a picture below of the panel you will need to remove to install either the Curt T-Connector Vehicle Wiring Harness item # C56257 or the Hopkins Plug-In Simple Vehicle Wiring Harness item # HM11141304 on your 2014 Chevrolet Captiva Sport. These connectors plug into your factory wiring harness and do not require any cutting or splicing of wires. You will have to remove quite a bit of your Captiva's rear trim pieces to find the harnesses. I have linked a couple of installation...
    view full answer...
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  • Recommended Trailer Towing Package for a 2014 Chevrolet Captiva Sport
    For a 2014 Chevrolet Captiva Sport, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver part # 75556. The Draw-Tite Max-Frame is a Class III trailer hitch with a 2" receiver tube opening. The hitch is rated for 400 lbs tongue weight (TW) and 4,000 lbs gross trailer weight (GTW). I have attached a review video of this hitch installed on a similar 2013 Chevrolet Captiva Sport for you as well. For a trailer wiring harness, I recommend using the Hopkins Plug-In Simple Vehicle Wiring...
    view full answer...


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C

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