Blaupunkt Travelpilot DX-N professional (JOB LOT)

1 X Job lot of Blaupunkt Travelpilot DX-N head units (X 4) part ref 7607271014, plus 1 X screen, connecting cables, speaker and remote controls, plus 1 X Navigation disc. Sold as for spares and not working, as 2 x head units will not accept the disc, the other 2 x head units load up and show a map on the screen, so appear to work as far as that. Expensive system when it was new, and parts may be useful to repair other units or make a good system out of all the parts. Please see pictures attached, no returns accepted.