Hi all, I'm planning on getting a Hero next week when my upgrade comes around. I will use the phone a lot in the car to play music Via an FM transmitter which plugs into the 3.5mm jack. I also plan to connect a bluetooth headset to the phone to make/answer calls. Will the Hero cope with this? If the 3.5 jack is connected and sound is coming through the car stereo, will it divert the sound to the bluetooth headset when a call comes in?