So due to outrageous car prices I will be keeping my 2007 Suburban (2nd owner since 2010) but I would really like to install a rear view camera.

I've found a few options, one that replaces the onstar mirror with a similar one that has a screen in it that hooks to a camera. Its fairly costly at $800 but I would consider it.

The other option is cheaper and connects to a radio with a built-in Navigation screen. However I would have to replace my non Nav radio (Bose sound system) with a unit that would allow me to keep the overhead entertainment system for the grandkids. Total cost for new radio with camera is around $600.

Anyone have any ideas?