please help me?

hiya

i have a clarion car stereo i brought it in a peugeot 205 and i need the radio code for it because the previous owner lost it and he recharged the battery before selling the car to me can you please help me.

clarion
the serial number is 0089070
the product or model number is PU9317A

if you can that will be a great help

many many thanks in advance.