It only takes 3 screws to remove the bottom panel of a BMW CM5908 Radio. There you will find the code jumpers; these jumpers, based on how they are soldered determine the radio code. Note where the jumpers are numbered TDC-0 through 5:
Jump only TDC-5 to set code 25142:
*Pictured is TDC-2 jumped, you need to jump only TDC-5 for the aforementioned code.
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