Subwoofer -R211-, REMOVING AND INSTALLING, 8RF, HYBRID VEHICLES M-HEV (0K4): Notes
WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
The Subwoofer -R211- is located in the luggage compartment floor.