I need to know which wire to tap in order for the boost guage light to dim with the instrument cluster when the headlights are turned on. I read a while back that it is suppose to be a white wire with a green stripe. Can anyone confirm this? BTW, the guage will be installed on the steering column if that's going to make a difference. Thanks in advance.

 

I wired mine into the dimmer switch. But I never dim the lights so I am not sure which wire will do it. I think you are correct though. Try it. f it doesn't work it is the other wire. The dimmer switch has 3 wires. Trial and Error.

 

Which wire did you tap in your install? So that in this case, I only have 2 wires to worry about.

 

Provide power to the gauge bulb and put the ground on the black/yellow wire.

The dimmer varies the resistance to groud, it does not supply the power to the bulbs.

Edit: Easiest thing to do is use the Green white wire for power. That way the light turns on with the lights and Dims with them too.

 

Why not tap into your ciggy lighter lights? it's the same.

 

I don't know. I just figured that it will be less work if I tap into a wire close to the steering column since I will be installing the guage pod on it.