Becker BM54 radio module repair KIT
Available for BMW E38, E39, E46, E53, M5, X5
This is quite common at BMW E38 E39, X5 and other models that some of the speakers (some cases all the speakers) stopped wiorking. 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.