When running the wires for my DIY Tailgate Lock I wrapped them in wire conduit and routed them through the bottom left corner of the tailgate. It has worked well and occasionally makes a creak noise when opening the gate as the conduit stretches a little. However the wires are protected and have no pinches in them. I removed the side panel on the bed and ran the wires into the cab through a hole in the left corner behind the rear seat. From there I went under the door step trim towards the front.
In my first RL I went under the truck and up by the drivers door. Again it worked well but I always worried about some road trash getting caught up on them.
Pic is looking down on the left side with the tailgate down flat.
In my first RL I went under the truck and up by the drivers door. Again it worked well but I always worried about some road trash getting caught up on them.
Pic is looking down on the left side with the tailgate down flat.