I wanted to replace the stock scroll wheel screen on side of my Ender 3's. Creality's Sonic Pad has taken over printing for the 3 Ender 3's that I have (two V2's and one S1). The mount is simple, the back profile drops into the designed hole and to secure this add some velcro (see pic). Wires can be routed through the slots and can be tied down with nylon ties if you want. I ended up rotating my screen 180 deg (Advanced Options/Flip Screen) so the USB ports 1 & 2 are not facing the heated bed. This design can be mounted on the left and right and should work on all frame mounting Ender configurations like the V2, etc.

My only complaint with this is that the Sonic Pad cannot be operated in portrait mode. That would be a huge space saver. Maybe they will update the interface in the future. :)