bluetooth

I have a 17 Acadia limited. Bluetooth always connects automatically, I usually listen to music through my phone. But sometimes, not always (which makes even more frustrating) when I receive a phone call it'll ring over the bluetooth but when I try to answer it won't go over the bluetooth. Even...

I just got a 2011 Acadia Denali edition and i have my phone hooked up to the car via bluetooth. Calls come through fine but i seem to get my music to play through the car. Any help would be appreciated.