I am trying to put a bill acceptor in my Ghostbusters Mars 110 volt AC unit the 9-pin plug is there from Stern but there is a extra cord rolled up in a bag that says Bill validation ac voltage it plugs into the black and white wire that's dangling and it gives you about 10 feet length to plug into another and to give you a hundred 10 volt to the bill acceptor does anyone know where this other plug is to plug in the other end I can't find it anywhere it's not in the head under the Playfield anywhere my AC DC was a piece of cake to put the bill acceptor in the 9 pin plug already had a hundred 10 volt in it