I have 06 F150 supercab and just bought 1 of those fiberglass bed covers. It has 2 wires that you are supposed to connect to the central locking system. I tried reading online and poking around with my multi meter but couldn't find the lock and unlock wires. Any help would be appreciated. I also need to tap in the dome or cargo light wires, do those run along the side under the plastic cover? what are the colors? Thanks for any help