An adapter part #19417602 came with my GM GenV crate engine. I'm using the Bowler all in one adapter which has 2 speed sensor wires on it which can be set differently. The GM adapter goes from a 3 pin to a 2 pin connector with pink and brown wires going into it. Anyone know for sure what the wires in this 2 pin connector are? I'm guessing one is ground, and one the speed signal input but need to know so I can wire it up.