Wiring Third Brake Lamp and Dome Light in Camper Shell on 2005 Chevy Silverado.

Question:

How do I wire-up the brake and inside dome light from canopy to 2005 Silverado extended cab Z71

asked by: Larry

Expert Reply:

The main trailer wiring harness is located under the truck bed, usually above the spare tire. There is usually a socket for your trailer connector to plug into, but if you peel back the wire loom you will find a light blue wire further up in the wiring harness that is intended for use for a third brake lamp on a camper shell.

The dome lamp should be wired into a 12 volt power source and should have a toggle switch installed on the circuit. Probably the easiest method would be to use the running light circuit, so that the dome light will only work while the headlights are on, but you will need to install a switch.

expert reply by: Mike L