I think they will only work on cars with the iDrive tech in them, and certainly in the UK these adapters are out of stock until at least June. Every Dealer got 5 of the basic ones and now they're backordered again. You need options 633 or 644 plus SA6NF and SA6FL to use the media adapter according to the list I've seen. The basic adapter will work with 6FL.

Reading on the web there are a lot of Owners who don't have 6NF because in the UK it's not called 'Smartphone Integration' and has been missed. BMW say no retrofits!!

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Me:
Current: 2011 E71 40D Vermilion Red/Beige Nappa

Wifey:
Current: 2012 R80 Countryman SDX Green/Cream