I have a bluetooth unit in the car (separate unit, not integral with the car), and I've noticed that my new phone automatically connects to it after a reboot. Any way to stop this? Until now I've always pressed a button on the BT unit to connect/disconnect to the phone. If I don't notice and disconnect it, the unit in the car auto-answers incoming calls and I miss them. I'm running ICS 4.0.4 on a Sony Xperia GO.