okay, I have original Connect Nav+ setup cd, and i downloaded another setup cd from internet.
I want use this CDs, i put the disc(s) to navigation, turn off and turn on.
Go to the setup / language, change the language, and the navigation dont change the language.
I think the Nav+ setup CD dont work with simle NAV.
I managed to solve the problem, a language only then it is possible to make a choice if ignition 12V for available navigation.
I tied it up for him ignition 12V allows a language already now to change, and uses it really NAV+ his CD