Hi Whitey, are you looking for the wire to tap into for a A/F meter ??? If so you only have too use 1 of the wire's that is going to your O2 sensor, Mine went to the grey wire but it is a different wire in different models.(as we found out). Powercruise was great fun. It's good to be able to size up to so mussle cars & some rice burners on the same bit of tar.. One thing I did enjoy was coming up behind 2 blown big bangers about to give it all so what else could we do but join in, you got to love a rolling start. The whole weekend got me keen as to get too a track day so if anyone hears of 1 coming up give me a heads up & I'm there with or without brakes after the first 3 laps Wasn't a big roll up for the T's or FPV unless the other 700 on the track scared them off. Muzza.