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Becker BM54, ASK, L7, Professional 2000 amplifier module repair KITS
Becker BM54 radio repair kit:
This is quite common at BMW E38 E39, M5 and other models that some of the speakers (some cases all the speakers) stopped working. This problem is due to an amplifier failure, which can be fixed with a repair KIT. Colored pretinned wires have to be soldered to pads shown on HQ pictures to make the installation easier.
Becker CD ASK amplifier repair kit:
This is quite common at BMW E65 and E66 cars that some of the speakers are not working, some case non of them. This problem is due to the amplifier which cab be fixed with an ASK repair kit.
Becker Logic 7 apmlifier repair kit:
This is quite common at BMW E65 and E66 cars that the bass speakers stop working. This problem is due to the amplifier, which can be fixed with a L7 repair kit.
BMW Professional 2000 apmlifier kit for BMW motorcycle R1200RT:
This is quite common at BMW Professional 2000 radios that some of the speakers are not working. This problem is due to an amplifier failure which can be fixed by a reapir kit.