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Odd that your 07 M coupe didn't come with premium-- but I'm sure bluetooth can be retrofitted at your dealer. I think I recall a bulletin listing all models after (2005?? not sure) could be retrofitted to bluetooth... Im pretty sure it required a TCM swap(on some years and models it may just be a reprogram) , a bluetooth antenna installed under the center console, a cabin microphone, and of course coding/programming with a dealer PROGMAN
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