I have a 97 Mark 3 Astra CDX fitted with standard in-car display with time/date, stereo display and temperature and I'd like to know if anyone knew if it was possible to fit the larger type of oomputer display with additional functions to an Astra without it as standard and if so how many (if any) of it's functions will work? I know some Astra's of this age have additional wiring that is un-used (a mate's 98 Astra had the display without temperature but when he fitted the newer type with temperature display it worked indicating that the necessary sensor/wiring was present). Any thoughts appreciated. Cheers!