IPhone 4S/ BLuetooth/listening to music from my iPhone in my car

Question

I'm looking a purchasing the Plantronics - Voyager Legend Bluetooth Headset - to go with my iPhone 4s running IOS 6.0.1.  Here is my question...I currently listen to music from my iPhone in my car, and I use the earphone jack to connect it to the car stereo.  My fear is that if I have the bluetooth headset paired up with the phone, my music will no longer go through my car speakers, but will rather go through my bluetooth headset.  Can anyone clarify this issue for me, specifically....will I be able to still listen to music from my iPhone 4S through my car stereo, if a bluetooth headset is paired with my phone, but yet if a call comes through, that will route through the bluetooth headset.
Alternatively, is there a way I could turn the Bluetooth headset on for calls and off for music?
Thanks
Any suggestions

Answer 1

Good question. Because your iphone is connected with an AUX cable, the normal audio should run through there and I'd EXPECT that the calls should be routed to the bluetooth headset if one is connected.
In the case the music get's routed to your headset - you should be able to go to the 'music app' (whichever one you're using) and you SHOULD be able to switch the audio output (see below). Mine show "Apple TV" - but your bluetooth device would be displayed here as well - mine is just turned off at the moment.