Digital Sound System Control Module -J525-, REMOVING AND INSTALLING, BOSE, MMI, THROUGH MY 2014: Installing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S7, 2018 Audi RS 7, 2018 Audi A7 Quattro, 2017 Audi S7, and 2017 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.