I know I get the signal from white/black wire out of PCM, but where is everyone getting the power from and where are you grounding to?
Thanks

 

You can get power from the fuse panel at the end of the dash. There is a spade lug, marked "IGN" (switched power). That's good for the +12V to the tach. For a ground, any screw under the dash that screws into a metal chassis part will work.

 

I'm going to run the power wire to the "ignition on" at the radio and the ground also.