iPhone connection problem.
Hi, just got a new Cooper S last Saturday and it's brilliant obviously. Only problem I'm having is with my iPhone. I got a BMW/MINI Y cable to connect it from amazon and it works to begin with, I press mode then choose the iPod function. But the majority of the time it's cuts off after about 15 seconds and returns to the radio. Then I have to press mode again and the iPod option is gone and it says 'aux' and 'usb' I have to choose aux and it works but the track names don't appear and I can't use the steering wheel controls. Anyone know what the problem is? Do I need to buy a cable directly from BMW? When I bought it it said it was compatible so I don't think it's that.