For 2015‑2017 VW Golf R Trailer Wiring 4 Way Fits All Models Curt 56374
Model: 56374-CW3697This Wiring 4-Flat Fits The Following Vehicles:
2015 - 2017 Volkswagen Golf R All Models
This Wiring 4-Flat Includes the Following Parts:
- Custom Wiring Harness, 4-Way Flat Output
- Installation instructions, schematics, diagrams, and hardware (if required).
List of Fitment Years:
2015, 2016, 2017
CURT 56374 Vehicle-Side Custom 4-Pin Trailer Wiring Harness
Manufactured by: Curt
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation.
Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Volkswagen Golf R (to verify your vehicle compatibility, see application info) It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use.
You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite However, turning that picture into a reality takes more than just daydreaming It takes a solid connection and the right amount of power.
CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup..
Features:
- Plugs into vehicle tail light assembly to provide a 4-way flat socket
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- Equipped with tail light converter for vehicle-trailer compatibility
- Constructed with SMT circuitry for better performance and durability
- Dust cover included to keep connector clean when not in use
- Backed by a limited one-year warranty
Hitches Near Me: We operate out of several warehouses across the country, ensuring faster delivery to your location.
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Product Details
- Brand: Curt
- Model: 56374-CW3697
- Includes: Custom Wiring Harness
Compatibility Chart
Description
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For 2015-2017 VW Golf R Trailer Wiring 4 Way Fits All Models Curt 56374 Install Notes
Installation Instructions for Volkswagen Golf R
Part Numbers:
- 56374
Wiring Access Location:
- P3: Behind driver side taillight housing, inside the trunk
- P4: Behind passenger side taillight housing, inside the trunk
Tools Required:
- Ratchet
- Ratchet extension
- 10mm socket
- Torx bit (T-30)
- Panel trim removal tool
- Phillips screwdriver
- Flat blade screwdriver
- Wire stripper
- Wire crimper
- Cutting tool
Electrical Ratings:
- Signal Circuits: 5.0 amps per side
- Tail/Running Circuits: 7.5 amps total
Step-by-Step Instructions:
Step 1: Disconnect the Battery
- Locate the vehicle battery, typically in the rear of the vehicle. Refer to the owner’s manual if necessary.
- Disconnect the negative battery terminal to ensure safety during installation. Secure the cable away from the battery.
Step 2: Remove Trunk Floor Coverings
- Open the vehicle's tailgate to access the work area.
- Remove all trunk floor coverings and storage trays.
Step 3: Remove the Rear Scuff Panel
- Remove the fasteners securing the scuff panel.
- Pull out on the bottom of the scuff panel, then lift it upward to remove it. Be cautious not to damage the alignment tabs.
Step 4: Remove the Driver-Side Trim Panel
- Remove the fasteners securing the interior side trim panel on the driver side.
- Carefully remove the panel to access the taillight wiring connectors.
Step 5: Access the Driver-Side Wiring Harness
- Locate the vehicle's taillight wiring harness connectors behind the removed trim panel.
- Carefully disconnect the connectors from the taillight housing, ensuring the locking tabs are not damaged.
Step 6: Install the Custom Wiring Harness (Driver Side)
- Insert the custom wiring harness end with the yellow wire between the separated vehicle connectors.
- Ensure the connectors are fully inserted and the locking tabs are securely in place.
Step 7: Install the Passenger-Side Wiring Harness
- Route the T-connector end with the green wire over to the passenger side, past the battery compartment.
- Repeat Steps 4–6 to connect the green wire to the taillight wiring on the passenger side.
Step 8: Mount the Converter Box
- Locate a flat, clean spot inside the vehicle near the taillight.
- Use the provided double-sided tape to securely adhere the black converter box to this location.
Step 9: Route and Connect the Power Wire
- Route the black power wire from the converter box to the vehicle battery.
- Refer to the included "Powered Converter Lead Instruction Sheet" for detailed routing guidance.
- Use cable ties to secure the wire along its route, avoiding sharp edges, pinch points, and moving parts.
Step 10: Secure the Ground Wire
- Locate a suitable grounding point near the wiring connection, such as an existing screw or bolt in the vehicle frame.
- If no suitable point exists, drill a 3/32" pilot hole in a clean, rust-free, and paint-free area.
- Attach the white ground wire using the provided ring terminal and screw.
Safety Note: Before drilling, inspect the area to ensure no hidden components are present to avoid damage or injury.
Step 11: Position the 4-Flat Connector
- Route the 4-flat connector to the center of the vehicle for trailer connection when in use.
- When not in use, roll up the connector and store it in a secure, out-of-the-way location inside the trunk.
- Use the provided cable ties to secure any loose wires.
Step 12: Finalize Installation
- Reinstall all panels, trim, and covers removed during the installation process.
- Reconnect the negative battery terminal.
- Attach the provided 4-flat dust cover to protect the connector from dirt and corrosion.
Hardware List:
- White ground wire with ring terminal
- Black converter box with double-sided tape
- 4-flat wiring harness
- Cable ties (provided)
Safety Notes:
- Always inspect for hidden components before drilling to prevent damage or injury.
- Disconnect the negative battery cable before working on the electrical system.
- Ensure the battery connection is fuse-protected (maximum 15 amps). Exceeding this rating can lead to overheating, fire, or voided warranty.
Specifications:
- System Compatibility: This converter system is to be used only on 12-volt negative ground systems.
Installation Instructions
Part Number:
- 56374
Wiring Access Location:
- P3: Behind driver side taillight housing, inside the trunk
- P4: Behind passenger side taillight housing, inside the trunk
Tools Required:
- Ratchet
- Ratchet extension
- 10mm socket
- Torx bit (T-30)
- Panel trim removal tool
- Phillips screwdriver
- Flat blade screwdriver
- Wire stripper
- Wire crimper
- Cutting tool
Electrical Ratings:
- Signal Circuits: 5.0 amps per side
- Tail/Running Circuits: 7.5 amps total
Step-by-Step Instructions:
Step 1: Disconnect the Battery
- Locate the vehicle battery, typically in the rear of the vehicle. Refer to the owner’s manual if necessary.
- Disconnect the negative battery terminal to ensure safety during installation. Secure the cable away from the battery.
Step 2: Remove Trunk Floor Coverings
- Open the vehicle's tailgate to access the work area.
- Remove all trunk floor coverings and storage trays.
Step 3: Remove the Rear Scuff Panel
- Remove the fasteners securing the scuff panel.
- Pull out on the bottom of the scuff panel, then lift it upward to remove it. Be cautious not to damage the alignment tabs.
Step 4: Remove the Driver-Side Trim Panel
- Remove the fasteners securing the interior side trim panel on the driver side.
- Carefully remove the panel to access the taillight wiring connectors.
Step 5: Access the Driver-Side Wiring Harness
- Locate the vehicle's taillight wiring harness connectors behind the removed trim panel.
- Carefully disconnect the connectors from the taillight housing, ensuring the locking tabs are not damaged.
Step 6: Install the Custom Wiring Harness (Driver Side)
- Insert the custom wiring harness end with the yellow wire between the separated vehicle connectors.
- Ensure the connectors are fully inserted and the locking tabs are securely in place.
Step 7: Install the Passenger-Side Wiring Harness
- Route the T-connector end with the green wire over to the passenger side, past the battery compartment.
- Repeat Steps 4–6 to connect the green wire to the taillight wiring on the passenger side.
Step 8: Mount the Converter Box
- Locate a flat, clean spot inside the vehicle near the taillight.
- Use the provided double-sided tape to securely adhere the black converter box to this location.
Step 9: Route and Connect the Power Wire
- Route the black power wire from the converter box to the vehicle battery.
- Refer to the included "Powered Converter Lead Instruction Sheet" for detailed routing guidance.
- Use cable ties to secure the wire along its route, avoiding sharp edges, pinch points, and moving parts.
Step 10: Secure the Ground Wire
- Locate a suitable grounding point near the wiring connection, such as an existing screw or bolt in the vehicle frame.
- If no suitable point exists, drill a 3/32" pilot hole in a clean, rust-free, and paint-free area.
- Attach the white ground wire using the provided ring terminal and screw.
Safety Note: Before drilling, inspect the area to ensure no hidden components are present to avoid damage or injury.
Step 11: Position the 4-Flat Connector
- Route the 4-flat connector to the center of the vehicle for trailer connection when in use.
- When not in use, roll up the connector and store it in a secure, out-of-the-way location inside the trunk.
- Use the provided cable ties to secure any loose wires.
Step 12: Finalize Installation
- Reinstall all panels, trim, and covers removed during the installation process.
- Reconnect the negative battery terminal.
- Attach the provided 4-flat dust cover to protect the connector from dirt and corrosion.
Hardware List:
- White ground wire with ring terminal
- Black converter box with double-sided tape
- 4-flat wiring harness
- Cable ties (provided)
Safety Notes:
- Always inspect for hidden components before drilling to prevent damage or injury.
- Disconnect the negative battery cable before working on the electrical system.
- Ensure the battery connection is fuse-protected (maximum 15 amps). Exceeding this rating can lead to overheating, fire, or voided warranty.
Specifications:
- System Compatibility: This converter system is to be used only on 12-volt negative ground systems.
Product Registration and Warranty:
- This product is backed by a comprehensive warranty. For complete warranty instructions, please download the full installation PDF.
Technical Support:
- For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
