07 tail light wiring diagram (installing revese sensor)

I am trying to install a reverse sensor. I was wondering where to find a wiring diagram so i can make sure that i am connecting to the right wires.
I attached to one of the reverse wires and an accessory wire for the rear power point. System does not work.
I need a ground point, reverse wire, brake wire and an accessory wire to connect to.
Any help would appreciated.

I have the full RAV4 service manuals and schematics on PDF.
But I don't see a way to directly insert an image into a reply otherwise I'd do that.
I also tried to add photo's to a user gallery but that feature does not seem to be working today. So....
You could send me a private message or reply to this thread and I can send you some JPG photo's of the related wiring.