The MID is the acronym for the factory radio control unit. The radio is either in the console or in the trunk or something I forgot. Since the actual radio is not where the remote is most people won’t remove when installing an aftermarket radio. Very good chance you could even snake the cable out somewhere you could connect the MiD for programming but likely the aftermarket radio install they cut the harness.

Some reconnaissance is needed to know.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)