Digital Nitrous Gauge

[BirdofPrey]

I bought an Autometer digital nitrous pressure gauge (part# 6374) and need a little help on the install. Everything is wired up except for the white wire which needs to be connected to a dimmer. I want to connect it to the headlight switch directly behind the headlight knob but I don't know which wire I'm supposed to tap into.

Please help. That's the only thing I have left to do to get the car back on the track. I'll be working on it tonight so your help would really....help. lol

[bigrondownhiller]

According to my diagrams it looks like a grey wire. Run a test light first to confirm that it is the right wire.