Rear camera mounted inside and pointing out back window?

I'm very happy with mine, too. The view from high up at the top of the rear window offers a much better feeling for distance than when I had it lower down. I can back up to within a foot of a pole quite safely because I can see the gap between the pole and the spare wheel mounted on the back. I sometimes pull a trailer behind and leave the camera on for easy monitoring. My camera is wireless and hooked up to the house battery through a switch mounted on the driver's seat.