I took this out of my 2011 2500 Duramax.  Everything is ready to go for that truck.  I sold it and took this out before they picked it up.  It sells brand new for $1,000.  I have everything you need, the wiring harness and the windshield mounting kit are included.  Thanks.

*Also, someone mentioned it needed to be cleared in order to use on another vehicle. I just thought I'd mention it.