hey guys im going to be installing a rearview camera on my 09 ranger sport this weekend. Plan on tapping into the reverse light in my tail lights to send power for the camera and the video. When I pull the tail light out I see the two wires below in the picture. One black/green wire and one brown/green wire. Wondering if anyone knows which would be my positive wire as I couldn't find it on google anywhere. I'm assuming the brown/green????

 

Its actually a Black/yellow wire and thats the Ground
Other is Brown/yellow and that's the 12volt wire, in Reverse

So correct bulb/wires to tie into