New to forum, posted this in the new members section so maybe This is the right forum, I have a few questions. Is it possible to add a second back up camera to my Chevy 2011 3500 HD? I would like to install a second camera for hitching my goose neck trailer and still retain my exsiting camera for parking and backing in tight places. . Would it be possible to switch from one camera to the other when needed and still use the same monitor on my rear view mirror? Are any after market cameras compatible with GM?