Folks: the MEDIA iPhone adapter behaves differently depending on the options on your 7. I tried on mine before buying (and as a result, didn't buy it): it only charges the phone and increases reception. On others (with Combox etc) it will play media and provide album art. Frustrating as heck, but that's the deal.
2012 X5 3.5i Sport Sapphire Black
2011 750Li, Alpine White (sold)
2011 335ci Silver Gray, 6-spd (sold)
2007 335ci Titanium Silver, Auto (sold)
2004 745i Sapphire Black (sold)
2004 330cic Silver, SMG (sold)
2001 330xi Black, Steptronic (sold)