I just bought a 2013 Silverado LT Texas Edition. It has the power, heated mirrors. My question is, Are these trucks pre wired for power fold in mirrors? I'd like to get a set of power fold in mirrors to replace the stock power adjust heated mirrors. I figure I'll have to replace the control panel switch along with the mirrors. but I'm wondering if anyone knows if these trucks are already wired for the addition of power fold in mirrors. Redundant, I know, sorry...