Help Wiring Gauge..., Need it to turn on when my instrument panel does Options

[jophish]

I recently installed a mechanical oil pressure gauge since I was tired of the idiot light. Anyways, everything works fine, except that I can't seem to find the wire to splice the backlight for the gauge into. I want it to turn on when the rest of my interior illumination turns on...with the first click on the headlight switch. Anybody done this before and know what wire to look for?

-Joe

[lubu]

I recently installed a mechanical oil pressure gauge since I was tired of the idiot light. Anyways, everything works fine, except that I can't seem to find the wire to splice the backlight for the gauge into. I want it to turn on when the rest of my interior illumination turns on...with the first click on the headlight switch. Anybody done this before and know what wire to look for?

-Joe

If you want to do this you need to tap it to the Dimmer Knob Control. The ACC will provide constant power so the gauge will lights up whenever the car is turn to ACC position, and thats not what u want. One more way of doing this is to look for the illumination wire that goes to the stereo, basically this wire is coming straight from the Dimmer Control and provides 12V+ whenever you turn on the headligh switch, from the top of my head this wire is pink.

The ground wire can be ground to chasis.