Sahara_V8

Ive got a 2003 Landcruiser Sahara with sat nav, bought the car new and now i think its time to do a some little mods. I know this has been discussed before, but i would like to know how to get the sat nav system to play dvd videos, i understand the dvd rom player cant. But by using corrosponding inputs (if it has any) am i able to connect a car dvd video changer to it? I would also like to add a reverse camera using the sat nav screen how do i go about doing this? please someone help as i cant find the right info on the net or on conversations in forums as they are incomplete or of overseas models. NOTE: ive attatched a pic here to show its possible...

hey im a newbie... i got a 2003 landcruiser sahara and would like to know more about the navigation system particuly about video inputs. I know this question has been asked before in this club, though never has it been answered 100%. All i want to do is 1) use the screen to watch dvd movies and 2) also add a reverse camera to it. ive read earlier that it has VGA inputs and so on but how do i get it to play dvd and would the nav unit also be playing the sound of the dvd as well?

Yes i beleive there is a lack of torque as well... parcticular when climbing hills at constant speed, you feel the car loosing speed even after it kicks down 2 gears. (being full with passengers)