Q.Best Option For Headrest-Mounted LCD Screen

I do not have much knowledge about aftermarket LCD screens although I'm pretty sure popular brands like Pioneer [URL="https://www.amazon.com/Pioneer-AVD-W7900-Widescreen-Headrest-Monitor/dp/B000UPIQK6"](check this link from the US)[/URL] and JBL do make them. However, I am guessing they would be quite expensive. The best solution, according to me, would be to get two iPad mounts and buy two iPad Mini 2s through Amazon. They aren't as expensive as the Pioneer units I've shared here and the good thing is you can always take them off and use them at home and office as well. Moreover, you can keep a 4G dongle in the car at all times and use the iPad to browse the internet or use YouTube or popular music streaming services for your music and movies. Currently, the iPad Mini 2 is priced at Rs 19,999 on [URL="http://www.amazon.in/Apple-iPad-Mini-Tablet-Silver/dp/B00H4XC8FQ"]Amazon[/URL]. Also, I have noticed that even premium car manufacturers brands are now offering iPads or a Samsung Galaxy Tab on expensive cars like the Audi A6, BMW 5-Series, etc. What do you think [USER="6"]Roshun[/USER]?

This is a very basic question, but i want a wise solution. My previous buying experience without much knowledge or research was pathetic. The one I bought earlier didn't support video mp4 playback. I had to convert the videos to .avi format. And button quality sucked too. Please help me in buying the best one this time. I don't want them to go inside the headrest. I want them to be fixed externally and with a minimum screen size of 9 inches. Please suggest a good model for me.