HELP Nissan Micra Radio Code

I have a Nissan Micra 2004 model, ownedfor 4 years and yesterday I bought a new battery.

I installed the battery and forgot it's going to require the radio code. I have misplaced the radio code.

So I removed the radio and it does not havea sticker on back however the serial and part numbers are engraved on the radio as follows:

BP334947258872 engraved on right side radio

8 635 123 393 0 engraved on back of radio

8 635 123 392 0 engraved on left side of radio

Will really appreciate if someone can help me out.