So, I am installing this innovate wideband and I have figured out where my power and the ground is going to be coming and go to, but I do not know where I should find the power for the headlight switch so the gauge can dim. In the manual it says not to use the dimming switch so that rules out the green and white wire, and from the looks of it the wire that connects to the head lights is a black with wire wire. Anyways any help guys would be appreciated.

 

that doesn't make much sense to not grab the dimmer wire in order to dim the lead's... tagging the parking lights will be either constant 12v or nada. i'ld either fuse the wire super low at the grn/wh or hit up innovate and see what they expect you to tag for a dimmer. what dimmer did you use for your other gauges if you have some set up?