Sir I don't h have a code but want to program remote this car 2010 forester

Hi sir I need to add key to the Subaru forester 2010 smart key, but it wants me to enter a password, how will I get the password, or how will I succeed?

Normally he does a wonderful job on his videos. I think the problem here is he had the other guy distracting him? What he did not explain is the code. Normally, the code will be supplied by the remote seller on a tag. I have also heard you can get the code inside on the actual remote circuit board, but this is not confirmed. Anyone?

What if you don’t have the 8 digit code?