I have a FX 35 2003 I was wondering If I can play DVD in my front
board navigation Panel .or I can put dvd in the passenger seat in place of navigation dvd and it plays in the Navigation screen

There is a way. I did it to my fx 35.

go to www.avelectronic.com/products.htm.

Find a shop that has installed it before and away you go. Mine works perfectly and still gives me back up camera and voice guided instructions or I can flick a switch and watch the navigation screen and listen to the movie/dvd concert or whatever.

Hope that helps.