thermaltake lanbox with incar dvd player

ok, i have a thermaltake lanbox case, and its one of the only cases that has a built in 7" bay! so i was wondering if i could fit an in car dvd player which has a vga connector and use it as a monitor? also how can i power the in car dvd player? i have an 850w akasa psu.

Should be possible. You can get 12V from a spare molex connector for the DVD player (don't blame me if you cook things) as they'll get 12V from the car. Do you get them with VGA out?