It's pretty straightforward. Red wire to hot wire, yellow wire to ground, good to go. I wired mine to the trailer 12V always hot wire and then picked a bolt on the frame somewhere I think. My switch is stuck to the wall of the bed behind the driver tail light so I wouldn't accidentally bump it. Wires run through a hole that's right there down behind the tail light, then under the truck. Here's a video of a guy installing them, but I haven't watched it. Just googled "Nilight bed strip kit install".