Radio / Cassette

[Newspaperman]

OK here goes my Multispace has no radio instruction book.
I have fitted standard Radio Cassette head unit I would like to swap out for a CD version is this an easy swap ad do I have to get a particular model of radio head unit?

Next question the amber / led dash displays messages in italian duh my linguistic skills stop at English can anyone tell me the procedure to change the language to English please as without a book Im a bit lost.

Thanks