Audi S4 B7 Startbild auf "S4" anpassen | Posts 16+

It's the software, just like others have mentioned, similar to the old VW MFD vs. Audi Navi Plus situation. You can code whatever you want, but the logo won't appear. You need to transfer the entire data set from one navigation system to the other. Alternatively, you can modify your own data set if you have the ability. Or, you could find someone who can do it (someone who can read and write to EEPROM).