I have read a number of posts stating headrest monitors cannot be fitted in comfort seats but they dont state why. I know a 7" monitor will not fit due to the small size of the headrest, but what stops a smaller monitor like a 5.8" from being fitted?

Has anyone fitted monitors into these seats?

I plan to do this myself - why because I can and I am demanding about things like this. Plus I know I would not be happy with a local dealer doing it