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GROM Audio MST4 - USB MP3, iPhone, Android (Bluetooth) kit for BMW – later models (Fibre Optic) M3 1 series 3 series 5 series X5 Z4 Mini E60 E90 iDrive Business Professional:
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GROM-MST4 BMW E90 E91 2005-2012 Bluetooth iPhone Android Adapter Interface Kit Usage (non iDrive) - YouTube
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