What do I need to look for? I want to mount a device to use as my DVD player that is somewhat the size of a what would be in a car and use it as the primary stereo and DVD. I have an HDTV that can do widescreen for movies. It will be going into an area that already has a stereo like a car mounted and the hole can be cut out further for a larger device. I do not want any attached or flip down screen. Lots of stuff and I don't know what to look for.