I have the camera in the grille, it's a color weatherproof bullet cam, I got mine from
http://www.cctvwholesalers.com I built a (fused, of course) 12V power supply for it right off the battery and fished a video cable through the firewall.
Not too hard, but since the "attachments" will run around $200, you can't really just pull out the camcorder and try it.