Silverado Reverse Light Wiring Diagram

I need the wiring diagram for the reverse light circuit on a 2005 chevy silverado 1500. To connect the camra up. I. 01 Silverado Reverse Wire location - I'm looking for a Reverse Lights Wire under the steering column on a 2001 Silverado (for a back up camera) and I'm not having any luck. I've pulled up wiring diagrams on this site, but haven't found anything specific to where it is. I found information that it's

I'm not sure which wire is reverse (the diagram is on the cover of the harness) but all I need to do is tap into that wire, ground the lights and then I'm good?. I wouldn't pull directly off the reverse harness for extra lights. I would only use that wire as a trigger to a relay, and then pull power from your batter or from your trailer plug if you have one. Not sure which wire is the reverse one on the actual housing though.