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So besides the antenna issue the BMW webpage discussing this product also says "For vehicles with Smart Phone Integration, this adapter not only charges the phone, but allows access to any music or MP3 files stored on the phone. In addition, it provides a connection to the roof mounted telephone antenna on your car for improved cellular reception. For vehicles with BMW APPS, this adapter is required to fully utilize all features of this option."
So what other connectivity is this providing, and why could I not just do this with some form of cable rather than cradle?
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