Home >> BMW >> 2024 >> M3 Base, Standard Trans >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> General Electrical System -- Repair -- M3 (G80) >> 61 31 Switches, Sensors >> 61 31 251 Remove & install audio operating facility (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) >> Install audio control unit