Hi all, I need to locate the headlight wire on the radio harness of my '05 Mercury Mountaineer so my Z1 will dim when the lights are on. It appears that the installer didn't think this wire was important enough to connect. Thanks!

Parking Lights(Ill), brown, headlight switch

should be a dimmer wire behind radio. i think blue/red

Thanx guys! Red/blue did the trick! What a difference it makes for night time driving!!!