Good prices, when I did a search these didn't come up. still I wanted the surround/vents etc. Hope you're right about the CP.i can`t update the firmware as the unit is hacked there is no cp on the screens they are all the same resolution so i doubt firmware needs updating.
i have seen these screens less than 200
https://www.ebay.co.uk/itm/14-17-SE...059525?hash=item3fa9d21e85:g:HGgAAOSwE1Bbhm44
https://www.ebay.co.uk/itm/SEAT-LEO...917402?hash=item33f3b2dc5a:g:XTgAAOSwgYlbj8WR
If your existing unit doesn't show the new style menus then you need updated software.