Call this guy.
Jim LaPlant (atlanta).404-277-9383.
He can answer all your questions, wires, location, color.
You can wire this whole system from under the rear seat and tap into the lighting harness on the left side wiring loom under the rear seat.
You will need a relay pack and two relays.
Jim can be more specific as he does this stuff every day.
Tell Jim John sent you.