Making memories doesn't start when you reach your destination, it starts at the very first mile of your journey. Wherever your road begins and wherever it takes you, Bring It with the power of CURT. CURT custom wiring provides everything you need to connect your vehicle's electrical system to a trailer. with plug-and-play connectors, a custom wiring harness easily integrates with your vehicle taillights to provide a standard trailer wiring connector, typically in the form of a 4-way flat. This custom wiring harness features a vehicle-specific design to perfectly fit certain years of the Hyundai Sonata (to verify vehicle compatibility, see the CURT application guide or use the Vehicle Lookup on the CURT website). It uses OEM-compatible connectors to T into the vehicle's taillight assembly and provides a standard 4-way flat output to power the taillights, brake lights and turn signals on your trailer.