2006 Chevrolet Express 3500 Q&A

2006 Chevrolet Express 3500 Question: I need to know which wire in the reverse lights is negative.

I am installing a rear back up camera and it requires that you wire it into the reverse lights. I need to figure out which color is negative. -
Answer 1
Light green wire brings power to the back up light bulbs, the other wire at the bulb goes to ground , confirm using a volt/ohm meter. -