I have a 9-3 turbo convertible with 'Media Centre' and my instruction book is not particularly helpful on all the features, particularly the telephone symbol. This feature is on both the steering wheel and the main dashboard. Can anyone explain to me how (if) I can use my own mobile through this. My phone is an iPhone 4S and I wondered if this might be a reason why I cannot connect to the media centre option if it is Bluetooth enabled. Alternately, do I need additiontionsl equipment to run a mobile through the main system. How does it all work? HELP!