After much playing around, I can now export my iTunes playlists to a USB stick.
It is attached; simply format a USB stick as FAT32 and name it either "Volvo Music" or "Car Music" [This stops you accidentally overwriting another USB Drive]
And run the attached VBS script - the "status" window is a little Clunky" in VBS but seems to work fine.
If you need to have UNIX separators rather than DOS then you can start it with the switch UNIX. i.e. iTunesPlaylistExportToVolvo5.vbs UNIX
It also works for my wife's Ford Sync3.
Hope this helps someone