Left Rear Bass Speaker -R15- /Right Rear Bass Speaker -R17-, REMOVING AND INSTALLING: 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 Left Rear Bass Speaker -R15- /Right Rear Bass Speaker -R17- -2- are located at the bottom of the rear doors.