2008 Avalanche Radio Replacement

I have a 2008 Avalanche with Sat/NAV/Rear Entertainment/Backup Camera Bose radio.  I would like to replace it, with a Pioneer AVH-270BT.  I have the wire hardness, but can't seem to get power to the radio.  I'm using this wiring harness from Metro GMOS Lan 02.  Does anyone have any ideas?  I don't want to keep NAV in my truck since my cell phone have google map so that is the reason for picking up a unit that doesn't have a NAV with it.

Please help me.  

Are you looking for the instructions for the harness.

will you sell the stock nav screen?

MS03 2500 said:

Are you looking for the instructions for the harness.

Click to expand...

I may be ready to part with my OEM head unit in late February, 2016 if the interest i still there from other parties.

2013 LTZ, with all the stuff listed in the OP's Post for front & rear audio/visual setup. Probably more with the Surround Headphone Speakers and such.

Keep the thread going until then.