BMW G01 G02 F97 G29 G11 X3 X4 Amplificatore Harman Active Sound Desing ASD 9442917
Amplifier Part number 9442917. PART NUMBER P/N - 9442917. G01 G02 F97 F98 - X3 X4. You buy an amplifier on the pictures as seen. coding required. CAN BE CODED TO ALL G, F SERIES MODELS.