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Originally Posted by BMW3FXD
It sounds from this forum that the dealer installed iPod Interface option has been superseded compltely by the new factory installed USB interface option? If not, can anyone point out the differences?
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It hasn't been superceded. The factory interface basically adds the capability to read USB hard drives and allows the CD changer to coexist. But, it can't be added by the dealer so the dealer installed unit will still be available for cars that don't have the factory option.
It does seem that the factory option will do everything that the dealer installed will do and more but the exact details of operation are not yet known so there might be details in which the new unit falls short.