My 37ft, 2015 Silverback has these windows. Push that shade all the way to the top, take a drink of whiskey, try every angle and PATIENCE ! They are difficult but you will prevail! I had to remove 2 screens when I had satellite
Issues and fed a cable direct to the TV. Send family away! It is permissible to use bad language!!
Here is a FUTURE TIP... Place a mark or removable tape in one corner of the screen, like upper right, so you know you are in the correct pattern to install it. Helps( a lot )