We remove the rear scuff panel, cargo-area storage pieces, tie-downs, and the necessary side trim to reach the CX-50’s factory taillight connections. The panels and fasteners are organized for careful reassembly.

A vehicle-specific harness is connected inline at the factory taillight connectors on both sides of the CX-50. The plug-and-play connection avoids cutting or splicing the original taillight wiring.

The harness is routed behind the interior panels and across the rear cargo area to connect both lighting circuits. The wiring is secured out of sight and kept away from moving components and exposed cargo areas.

A powered converter is mounted in a protected interior location, connected to a secure ground, and supplied by a dedicated power wire from the vehicle battery. This helps provide consistent trailer-light power without overloading the factory taillight circuits.

We verify running lights, brake lights, turn signals, and ground-circuit integrity before reinstalling the cargo trim and storage components. The flat-4 connector stores inside the rear cargo area when not in use, helping protect it from moisture and corrosion.