Digital Sound System Control Module -J525-, REMOVING AND INSTALLING, ADVANCED SOUND SYSTEM (8RF), 7-SEATER WITH 48V VEHICLE ELECTRICAL SYSTEM, FROM MY 2021: Installing

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.