If I can change them...and whatever you may think from other posting I make, I'm not technical in any way, but if I can anyone can.
Get the Haynes, read it, re-read it, then do it. (if you haven't got the Haynes find a mate who has.....or buy it yourself. Most of the stuff from an 06 SM is the same as an 07....it's cosmetic differences).
Gina
03 America - Pretty stock - except the TBS wheel...

06 America - missing, presumed in bits. With it's TBS wheel...

09 America - It's very blue....