Has anyone try this? I've been looking for one, but still can't find it at any BMW dealer. Today I found this item on the internet. Don't know if it's an after market item or not. It said original on the listing below.

http://www.salesafter.eu/product_info.php/info/p484_original-bmw-snap-in-adapter-for-apple-iphone-4--basic.html

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E70 MY08 3.0si Space Grey, Sport steering wheel, Titanium Grill, Titanium lower grill, Sidestep, and more to come

E60 MY05 525i SE Silver Grey, M5 mirrors, Hartge Classic II 20", Eibach Spring, M Sport Trunk spoiler.