Thank you! That may be just what I'm looking for. May have to rig one up from various parts, rather than buy a kit, but doesn't matter so long as I can see whats behind me!
I'm thinking of going with a wired set. The wireless is more convenient, but I think I'd get a better more consistent image with the wired connection. Besides, I have to hitch the trailer, the chains, the light/brake plug and the e-brake cable, whats one more connection?