I also wanted the stock brake light behavior. The instructions in the package were pretty clear, but it was somewhat unnerving pulling the panels out, not knowing excactly how they came out. I don't have a diagram, but I remember the instructions being pretty specific. Ran the wire from the trunck behind the rear seat under the trim panel along the passengar side up to the passenger size front kick panel. Exposed the wires and spliced into the one that I thought was correct. I remember that there were many wires there, and the colors weren't as clear as I thought they'd be. Before re-splicing, I emailed the company. They were very helpful and got back very quickly. Cut the wire and re-spliced and everything worked.