Re: Kenwood 8120 install
Not trying to be an ass or anything, but you can't install it yourself? The steering wheel controls and other conversions have adapters to make things easy. The back-up camera is a couple of screws and a video cable. The rest is simple wiring.
As for the $800...seems a little steep to me. Try Extreme Audio in Mechanicsville, AudioOne, Audio Express, and RPM. Not sure who you called already, but those are some reputable shops off top of head.