ok so on the resistor box of the obd-0 car there is a green plug that goes to it and on one side there is 4 red/black wires and a yellow wire. then on the other side were it goes into the resistor box there are i think 4 black wires. how do u wire this up because i wired the 4 red/black wires to the yellow wire and jus diconected the box and the 4 black wires. is this right