Harbor freight fish tape ftw, got the rear camera wire run through to the hatch. I'm not sure if I'm gonna retain the present placement of the camera but for the moment we'll see how much it annoys me, it's dead center and a bit below the decal on the rear window. I also found a location that seems reasonable for the camera up front, and I think I've got a plan for running the cable the rest of the way. I've never hardwired anything before but I have a hardwire kit and a basic logical understanding of what's going on, so hopefully it's not too bad.