i already have dvd, playstation, navigation and all that jazz in my supra but i always have people in the back of my car and i want to get some monitors back there for them. i have found some headrest monitors but the biggest size for headrest mounted monitors i can find is 5.6". i was wondering if i could take like a panasonic 7" screen and just custom mount it in the headrest? the headrests look pretty big so i think it might fit but i wanted to ask people who might have tried it first. and if the 7" wont fit then what is the biggest sized monitor you all have seen in the supra headrests?