rear view mirror

Hey all, I'm installing a rear view camera, splicing into taillight power. I guessed that the white/black wire was taillight power, the red/black wire was brake light power, and green was ground. But I think I'm wrong. I'm bad with electricity, does anyone know what color is which? Thanks!

I am the original owner of an early build 2006 Ridgeline. I have been snake bit when it comes to windshields. I am on my 4th windshield with another slight chip (repaired). Hoping #5 not needed for some time. The other day I left work to find the rearview mirror dangling from the wire harness...