Ok, there's the 3.5mm jack on top of the phone. I just tried playing Pandora in the car. Played fine on the phone, plugged it into the car (the connection works, actually unplugged my Sirius receiver) and nothing. The Sound did stop playing on the phone properly but nothing out of the car speakers. Volume is set high on the phone and is high enough on the car. Any ideas? I can't find any kind of setting anywhere in Pandora (or elsewhere) which I need to change.