Subwoofer -R211-, REMOVING AND INSTALLING, AVANT/ALLROAD, NATURAL GAS VEHICLES (0K2): Notes
WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
The Subwoofer - R211- is located behind the right luggage compartment side trim panel.