Tach terminal wire on the PCM?

[airbillster]

I purchased an adjustable RPM shift light and the main wire has to be attached to the Tach terminal wire on the PCM. Anybody know which one it is?
Thanks, Bill

 

[2003gt]

did you get it from raptor performance ???

if so, do the install on the spark plug wire, alot easier, and a better signal.....