On my '08 GS460 (my first Lexus), the Bluetooth works great with the exception of - if i shut off the car in mid-conversation, it disconnects the call. I can go to the menu on the Blackberry and disconnect the Bluetooth before shutting the engine off - this works it's just a hassle -but my old 740i integrated phone kept the hands-free conversation going (plugged-in phone, not Bluetooth) after shutting the car off. Any thoughts on this?