iPod/iPhone hookup 2011 X5

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My 2010 7 Series with iPod capability, required the Y adapter that BMW provided (was in the glove box upon delivery).

My 2011 35d, also is iPod equipped (it's on my window sticker). It did not come with the Y adapter. My salesman told me to just use the white Apple USB plug (as you would use to do an iPhone or iPod update or sync).

I was looking at some 2011 X5s on eBay, and they showed the Y adapter in the center console compartment..being used for iPad/iPhone hookup.

What's the deal? Did the dealer screw me out of a Y adapter, or can I just use, or should I just use the white Apple cable?

Thanks a lot!