[someguy]

I've got an iphone 5 and it looks like there (should be) two options for snap in adapters:

1) there is a standard one that charges the phone and allows my phone to sue the roof-mounted antenna.

2) there is a BMW Apps version snap in adapter that does the same but allows access to music on the iphone. (this snap-in adapter is not yet available but should be soon, according to my dealer)

I have a few questions about this:

a) is this second adapter necessary to listen to music from my iphone?
b) can Bluetooth be used for the music connection (even though the quality will be less)?
c) (surely a pipe dream): can this second adapter be used to allow my car to use data from my phone's cellular connection?