share ko sa iyo what i've researched.
it can play video only when tranny is in P, and only with the aux in/usb from a media player. so you will need the proper cables from a media player (i.e., iphone, tab) to connect to the aux in/usb connectors of the sync2 mytouch hu. this limitation of only being able to watch video when the vehicle is parked is a feature that is required of US vehicles wherein US state laws do not allow viewing of a video for the front seats when the vehicle is in motion. since sync2 is inherited by the everest from its US brothers they did not bother to edit the program anymore to conform to what is allowed over here (you can blame microsoft for that).
there is a hardware that is available called "Lockpick" that allows sync2 mytouch to play videos even while the vehicle is moving (of course not in R since that puts the rear camera in play). mahal lang, like $350-450 depending on model and car. it will need to be put in between the connectors at the back, plug it in and some setting up required depending on what features you want to enable or disable. STILL you can only view videos from the aux in/usb, not from the disc player since that is only a CD player and not a DVD player. so unless you have the time before every trip to transfer the DVD you just bought to a media player then this will not work for you. if you want this solution here is the latest Mytouch Lockpick Air link >>>
Mytouch AIR
my chosen solution is simply to buy a headrest monitor with DVD/TV player with a fm transmitter for the sound. if the front passenger wants to view what's showing at the back then I can just buy another monitor stored in the glove compartment. that or a replacement sunvisor monitor.