Help with code for radio/CD for Clio Grande 1998?

Hi all, hope someone can help - my battery died while I was off work sick, have managed to fully charge it now, but the radio/CD unit has now locked and I don't know the code.
Model no: 22DC481/62
Product no: FD1098509068039
It's a Philips 9022 214 81629 Radio Sat 6000
Hope someone can help?
Many thanks