Here is a quick how to for boost guage/any guage wiring for lighting. Pics this weekend.
I used the clock to tap the juice. You have 4 wires total on the back of the clock, LR - YG - PL - B.
LR -
Blue/
Red
YG -
Yellow/
GReen
PL -
Pink/
Blue
B - Black
LR - runs to FB8 - runs to direct battery bus. (Excuse the aircraft terminology)
YG - runs to FB26 - runs to ACC/Ignition
PL - runs to FB9 - runs to tail illumination relay.
B - ofcourse ground.
My gauge has
3 wires. Ground, 12 Volt ignition, and Dimming.
I used FB26 - (YG) for 12 volt during key on
FB9 - for dimming, guage dims when lights are turned on due to tail illumination relay.
and duh, B for ground.
DO NOT use FB8!!! guage will be very very dim when your car is off.
I plan on using vampire taps if there is room to spare. If anything im going to splice using FAA aproved slices ;)
I guess if you want to run the line, follow the old boost line. I'm having problems pulling off the steering column, I'm calling it quits for today. It's to hot outside. Crotchrot
Here is me jimmy riggn the gauge..