I purchased a Honda audio attachment for my lower cubby compartment and planned on installing my monitor (Mo-co-so Mini Touch) there. However, the monitor is not able to utilize the entire attachment opening, leaving a gap on the side. I was thinking of installing USB ports there but there will be a small gap at the top corner. Additionally, I am afraid that hooking up USB devices will block part of the screen.

Are there any suggestions? Perhaps I can cover up the gap? Unfortunately, I cannot dedicate a lot of time on the project and am not too skillful with fabrication so a quick and clean fix is appreciated. Thanks!