Help displaying content from REGCODE module on profile

Not sure what can be done here but - I need to display the unique registration code from RegCode in the user profile.

The codes are tied to unique membership # cards and many users have asked to be able to display the code on their profile.

That is not a problem as the number can be easily entered in an advanced profile field, but I would like to be able to set this up to automatically be done for all members so that as soon as they enter the code on registration it is shown on the profile.

Any ideas?

THanks