Got the firewire cable done, hock it up to a/f gaue and work fine at 1st.
starts off at 14.5 goes up and go down and goes all the way up to 17.9 then goes - - -
The problem I have is what 12v power and ground do you go off????
the a/f gauge was still working even when the key isn't turn over.
Only why I found to make this work is to go through the lights, so by turning my headlights on and off so that it doesn't flaten my battarie.
Have to take it to auto electrician to make this work... more info and pic needs to be added on here so that people can finish the job off...
I only worthship the HP gods 
A false Hp god: Foolish are those who always have wild claim and know fear nothing, yet claim to know everything.