I was specking out a 2015 Sierra 1500 and it seems to be able to get the 6.2L you have to get the Max trailer package and with that comes the Towing mirrors. I don't really tow and have no need for big bulk mirrors. Is it possible to add the smaller style mirrors? Just plug and play? I assume the towing mirrors are not power fold, if I just switched out the mirror switch, could this operate the normal power fold mirrors?