Home >> BMW >> 2021 >> M3 Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Audio, Navigation, Anti-Theft, Airbag Control -- Repair -- M3 (G80) >> 65 12 Audio Amplifier, Head Unit, Subwoofer >> 65 12 816 Replacing Headunit High (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) >> Replacing the head unit