This amp, which can be found in the trunk of the vehicle on the left hand side, provides power to the audio system. Poor sound quality, low sound volume, or no sound whatsoever are all signs this unit may need replacement. For vehicles with HiFi System Professional DSP (S677A) only.
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Genuine BMW Socket Housing This item fits the following BMW Chassis: E60 M5,E63 M6,E70 X5M,E71 X6M,E82 1M Coupe,E63,E70 X5,E71 X6,E82,E89 Z4,E90,E92,E93,F01,F02
