Cadillac, GMC Trailer Harness Adapter

4-pin flat adapter output connects the taillights, brake lights and turn signals of the trailer
Adapts 7-pin vehicle trailer harness to fit a 4-pin flat trailer connector
Custom-designed adapter that converts a 7-pin trailer harness to a 12-volt power outlet
Simple plug-and-play design eliminates the need for cutting or splicing
Corrosion-resistant terminals
Weather-resistant connection
Power up with a Cadillac Accessories Trailer Wiring Electrical Adapter. Utilize your trailer wiring harness to power other devices through the custom-designed adapter that converts a 7-pin trailer harness to a 12-volt power outlet. The 7-pin round to 4-pin flat adapter allows for easy connection of trailer wiring harnesses that only require a 4-pin connector.