Bluetooth audio

I finally got my big White beast, pics to follow....

One strange thing I've noticed is that when the Columbus connects to my iPhone or blackberry they start to play music through the phone.

I have them paired for phone only and it happens, if I pair as a audio device the music comes through the Columbus, if I disconnect the audio device and start the car again the music plays through the phone.

It's sort of funny for Iron Maiden to keep singing to me every time I get in the car, but maybe not for much longer.

Does anyone know what's going on?

Harry