Just bought Friday, so still learning the Display Audio system. Had a little trouble getting BT going, but success after a few minutes. Unfortunately I seem to have set up Bluetooth phone and Bluetooth audio/music, when I only wanted phone. I have a simple Net10 phone with BT, but I don't keep music on my phone, would rather use iPod or iPad for that. But now my phone is giving a repeated error message like 'no music.' The manuals all explain how to connect, but not how to disconnect or reinstall. Can I turn off audio and have phone only in the car?