Just drill it wherever u mount it. Just wire the switch to a power source on the car somewhere. i guess u can run the wires from under the car, to the engine bay and inside thru the firewall. Dont run the wires between the door hinges, or in that space between the fender. just find one of the spots were there is already wires being ran thru the firewall, and run it thru there. Ive never installed one before, so i dont know if it has extra switches and relays and all that.