Got a Motorola T605 installed today at Best Buy. Syncs with my phone via Bluetooth just fine. Plays music great, and because it is going through the aux jack, sounds far better than FM modulators. However, when I make a phone call, the other party can hear me, but I can not hear them unless I turn off the bluetooth. Tested phone with a different bluetooth device and it works just fine, so my guess is that it's the T605... but the music plays perfectly from my phone to the T605? How?