The Blue & Me voice recognition software that FIAT includes with the new Fiat 500 is quite good for a Microsoft product. In Europe the symbol on the steering wheel is the Windows logo but with the shoddy reputation that some feel Microsoft deserves and the popularity of Apple phones/media players, it was wisely changed to a person speaking for the USA version. It is easy to set up and operate for all incoming and outgoing phone calls but is unable to stream the music stored on your phone via bluetooth. The option for media is the USB pug that will both charge your device and make all the mp3 files accessible. Unfortunately the MP3 menu system and display of music is quite poor.
Here is a better way to connect your Android (and presumably Apple) phone for both calls and music/GPS directions via bluetooth that will automatically lower the music when a call comes in or the GPS has a notification.
You need a bluetooth recover. I have found the BlueBridge mini-jack Rx works best. It's available on Amazon
Plug this into your audio jack input and USB plug for power.
On an Android phone (Nexus one) you are able to choose multiple bluetooth devices; one for phone audio and the other for media.
It all works seamlessly and once the two bluetooth settings are made they will automatically connect each time you enter the car with the phone.