I'm going to politely disagree with the above posts about the best way to hook up the starter button. It will work that way, but there's a lot of current going through the switch that way. Best way, in my opinion, is to pull the yellow (IGN) wire off the relay and put one clip of the switch on that terminal (not on the wire) and the other end on 12V pos (I usually hook to the battery). This will also make sure that you don't start the car in gear as the NSS will be in the circuit.
