Welcome to the forum,

You have upgraded from an old version that requires a cd key to finish the upgrade.

Download this zip file burn to a cd and inset ito you drive.

http://www.xoutpost.com/nav/Nav_KeyCD.zip

You should then have a fully upgraded nav drive, however tha latest version for the mk3 is either v22 or v23 (I'm not 100% sure).

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.