No, this mod is just for the navigator, and is only intended for a German install. If you want German voices, you will have to completely reinstall the game, just be careful. When you install, tell it to continue the install shield in English, then set the second language question to German. That way all dialog boxes will be written in English, but all voices will be German. I know this is really inconvenient, but it is the solution. Good luck.
