My experience is that dealer's database won't include the Audio 10 from Europe, and code generators that work for Becker don't work either because this Audio 10 is an Alpine.
The only way is to read the eeprom chip inside. I can do it for you when I get back home - I'm away on business/vacation for two more weeks.
Here is my web page with more info:
www.perfectmarketaudio.com/decode
Ray