Odd question but hey.......... here goes. Ordered a new Renault and it comes with a DVD based Carminat SatNav system. This works via a rather nifty 16:9 display on the dash. Can either of these components be used in any other way? i.e. can the display be hooked up to another DVD player for movies etc. Or can the SatNav DVD (-ROM I presume) be used to play any other discs, other than the map disc that it comes with?