I think realistically the answer is no, although you could look at a carputer option, where you connect the ibus to a pc/laptop/carputer and run one of the nav clone type apps.

That way you can have the "plug-ins" because you would be using the Windows Media Player, and being conected via the ibus, you could also display the info from the board monitor.

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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.