Power Fold Mirrors

[two-piece]

Ok I need some help with adding power fold mirrors to my 2008 GMC Sierra. I have done a lot of research on the subject but I haven't completely figured it out. I have replaced the door switches, mirrors and door harnesses. Without any reprogramming the mirrors fold, blink and adjust. The front windows work as well. From a write up in another forum by a tech the rear windows need to be switched to BCM control. This is what I wont to clarify before going any further. Im posting a link to this topic from the tech at the other forum, any help would be appreciated.

http://performancetrucks.net/forums/showth...wer+fold+mirror

[montyss]

Did you previously have the hard wired type switches or the data bus type ? and did you use new switches or used ?

[two-piece]

Did you previously have the hard wired type switches or the data bus type ? and did you use new switches or used ?

 

Im not sure of the front switches but my rear window switches are hardwired, I have used switches.