I ordered two different switches and all the wiring diagrams that I have found have the wires set up differently on the back of the plugs?The relay plug is correct but the wires on the switch are set up differently the open spot is in a different location.I also wanted to know if i just use a 12volt source and ground if I could just check wire by wire to see what each one will do without harming the mirrors,switch or relay?The ground wire is open and the open pin on the left is occupies on my switch and the second pin from the right on the top row is open too?Thanks Antonio