Sorry, when I said rear camera what I mean is a small permanently fixed camera (like the little reversing ones), with a connecting wire run through the car to the camera at the front.
I know you can get cams with second inputs etc, but it sort of crosses over with my ideas for a double din head unit that does everything - tunes, DAB, sat nav, bluetooth phone, front and rear cam. The unicorn of head units.
I guess I could get one of yours, and pull apart the rear facing part and just extend it, say to the top of the rear window. All wiring etc would be hidden behind the headlining.
