No you can't. 2012 was all new wiring and plugs. Already been brought up.
Actually yes you can, I believe I was the one who said that it was not possible and I was wrong. I have a 2012 Silverado without nav and that basically gives you 2011 and older plugs to the non nav radio. I had Greg at CPS Audio Video in cali sell me the Nav unit, and wiring harnesses of which comes preprogrammed for your truck so essentially it is plug in play from them and the whole setup costs 1500.00. I also opted for a video harness and that was an additional 50.00. This unit is quite a bit different from the 2011 and older units, completely different look to the software. It also has it's own XM tuner built inside it as well. Sorry for the crappy pictures lens was dirty.