John-e Bravada
Full Access Member
- Joined
- Sep 28, 2012
- Posts
- 156
- Reaction score
- 1
- Location
- Oregon IL
- First Name
- John
- Truck Year
- 1986
- Truck Model
- C30 3+3
- Engine Size
- 5.9L CTD
I'm sure this is a stupid question but I'd rather know then burn up the gauge. How to I wire the Brown wire under hood? I have a 12v Cummins so my alternator doesn't have a post for the gauge. I have 12v on the Brown wire under hood but I thought I needed to hook it to a 12v system supply to make the gauge work... Help