2008 LT2 Bluetooth?
 

My co-worker just bought a 2009 Chevrolet Malibu LT2 with Bluetooth connectivity. When I bought my 2008 LT2, Bluetooth integration wasn't an option. Does anyone know if there is anyway where the dealer can install Bluetooth connectivity into my 2008 Chevrolet Malibu?

its not offered as a factory option. you will have to install an aftermarket piece
check out www.parrot.com for your best options

So I went to a few electronics stores around town and found one selling the Parrot CK3000 for $268 (installed). Seems pretty reasonable, and apperently this thing will cut out the music from the stereo the second I get an incoming call, which seems pretty slick! Out of curiosity, would that not mean that they have to install something to attach to my stereo? If so, would that not void my warranty? In addition, if installed correctly, it should have any effect on my Onstar right?