I bought a car with no code available for the radio cassette. The details are as follows:
Philips: 22DC 461/62L
Prod No: 0998394038203
Bar Code: 7700 433 072 0230
Code gravage: 4038203
A sticker on side of radio says 9833 12220

Any help much appreciated after several long silent journeys!

Richard WB, December 2012