Since the upgrade to ICS, my Droid Razr won't connect with the factory installed bluetooth in my 2008 Nissan Sentra. It worked perfectly before the upgrade but now nothing. It pairs and when I call using the steering wheel controls, it turns on the phone with the correct person and calls them. However, you can't hear the phone ringing in the speaker and if/when the person answers you can't hear them. I was excited to get the upgrade but my car bluetooth is more important to me. Everything else works great but the bluetooth is a major safety issue for me as I drive a great deal. Does anyone know how to fix this or is there a way to undo the upgrade?