I found this in FB. I haven't tried them but I think this should work.
b it may help some of you folks who have lost there radio codes, haven't tried it yet don't know if anyone has
How to get your radio serial number?
CR-220/CDR-220:
Hold down the TP button for at least 10 seconds after you turn the radio on. "Becker 1" will be displayed. Rotate the right knob (slowly) and it will display the Becker model number. Then rotate it again and the serial number should be displayed on the radio.
Or, if the radio is out of the car the then the serial number is on the label.
CR-210:
Press tone, then 8 and 0 simultaneously. "Becker" appears. Press station up arrow on right. "
PR-VERS" appears. Press one of numbered buttons below display, directly below the LCD arrowheads (try a few). The model number will appear. Press station up arrow on right. "SERIAL N" will appear. Press the numbered button again. The serial number will appear.
Or, if the radio is out of the car the then the serial number is on the label.
CDR-23 (or later):
These radios do not have a security code - that is, not that the user enters.
These radios are security tested on the MOST (fiber optic bus) system to see if they are the "programmed" radio. The radios are programmed and recognized by the car’s DME and can only be replaced by a shop with a PST2 or PIWIS. These radios will not request a code when battery power is disconnected.
Traffic Pro:
Select the Service Menu, press NAV and multifunction key 10 simultaneously in radio mode. Use multifunction keys Nxt and Prv or turn the right control knob to select the individual items.
You can move through the following items:
- Model-No.
- Serial-No. <-- this is what we need
- Changer Reset
- GAL
- Radio Software
- Radio Bolo
- Navi Rom
- Navi Flash
- RTC Value
To quit the service menu, press END.
Threaded Mode
