Becker Radio (CL, S & SL Class)
Turn ignition on. Turn radio on. Press buttons No. 1 and No. 6 or buttons No. 1 and RDS (classic) simultaneously within 8 seconds after switching radio on. CODE will be displayed on radio. Enter customer supplied code number using station number keys on radio. Confirm correct code is displayed by pressing TUNE/AUTO button. Radio will turn on if correct code is entered.