I listen to Audible books through the Bluetooth connection to the Model S. I'm not sure where the Bluetooth receiver is in the car, but I have significant issues with the Bluetooth connection dropping and reconnecting. I have also seen strange "gaps" in XM and HD Radio connections - that do not seem to be related to where I am driving (.i.e. no obstructions), but that may be an unrelated problem. Hopefully this is a software/firmware issue - where the audio process as a low priority is getting bumped and can be corrected. Anyone else seeing similar performance when playing music through a bluetooth connection? On the bright side - people talking to me when using a phone connection say the system sounds excellent.
I'm having the same issue and my service center guys told me it's been reported by others and that it may get fixed with the next software update coming in a week or so. We'll see...
Funny, my Samsung Galaxy note 2...music seems to work fine (only 2 days into it though) but contacts and phone logs are not showing up when returning to the vehicle.