I currently have a 2009 Silverado 1500 without Bose and I put a Non Bose Nav unit in my truck. My question is Im looking at buying a 2013 2500 HD Silverado in the next couple of days. I know I read this somewhere buy cant seem to find it. Is it just plug and play for the 2009 to the 2013 or not. The new truck has the USB port and my 2009 does not.