4D0 035 225 H · Amplifiers Audi genuine (OEM) part number 4D0 035 225 H, Amplifiers. Fitted on (2)BOOSTER — pos (2) · PR:7Q2 (KAT256.BIN)BOOSTER — pos (2) · PR:7Q2 (KAT257.BIN) Open the interactive exploded diagram →