Use a diaper or a soft rag and rince the rag with hot water and squeeze
it out then wipe down the display.  Follow this with a dry rag before
the screed dries.  It will take a couple of times.  Do not use glass
cleaner on the screen as it will damage the finish.  The process will
take a couple of times since the guys that detailed the car went
overboard with the vynal protectant...  Just make sure that you keep the
wet rag as dry as you can by squeezing it out after each cleaning.  Too
much water and it will leak inside the cover.