
Professional Installation
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Trailer Hitches
Bike Racks
Running Boards
Roof Rails
Hyundai Santa Fe Sport (2017–2018) Flat-4 Wiring Installation

Vehicle Coverage: 2017–2018 Hyundai Santa Fe Sport
CURT Harness: 56184
Output: 4-Way Flat
Connection: Vehicle-specific taillight T-connectors
Installation Time: Up to 2 hours
The CURT 56184 connects behind both taillights and powers trailer lamps through a protected converter rather than loading the vehicle's lighting circuits directly.
Connector Location: The trailer connector remains inside the rear cargo area for protected storage when not in use and is pulled through the hatch only when needed.
1. Preparing the Cargo Area
Rear cargo-floor pieces and the scuff panel are removed carefully to reach both taillight access paths.
2. Opening Both Taillight Connections
The lamps are released and the factory connectors are separated without damaging their locking tabs.
3. Installing the T-Connectors and Converter
The driver- and passenger-side harness branches are connected, the module is mounted inside a protected area, and the ground is secured.
4. Routing the Fused Power Lead
The battery feed is supported away from heat, sharp edges, and moving parts and is fused at the battery connection.
5. Final Testing and Reassembly
The 4-flat output and all vehicle lighting functions are tested before every lamp, grommet, and trim panel is restored.