Check in glove box in the service manual you must have small booklet showing the operation for Radio and CD player. On back side of it there will be 4 digit hand written code must be there. That's where i found mine.
If not, go to Al Tayer with VIN number and they should get you one or reset the system to start without any CODE after battery change.
Don't do many fail attempt as it will keep doubling your time to enter code for next attempt. First wrong attempt will make 30 second delay to give another try, next will take 1 minute, then 2 minutes, 4, 8, 16, 32 mins so on.