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      04-05-2012, 09:34 PM   #2
simianspeedster
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Drives: 2016 435i Gran Coupe
Join Date: Feb 2010
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I dug into this a little before and I think the biggest difference is that the regular BT doesn't support music streaming through the car's audio system. No matter -- USB works fine. And I'm not sure about this, but I *think* you need the enhanced BT to sync phone address books and maybe some other minor smartphone oriented functions. All the basic phone functions work with the stock BT, of course.