hello everyone i'm new to this forum. Just bought a 05 g35 non navi but.....It has navi installed but does not work ..Just for show i guess came with screen, dvd drive, antenna on the side of the door..Previous owner i guess bought from a friend and didn't get a chance to install. How can i make it functional???? Pretty much i have everything it needs but not installed (wiring) ...Can someone please !!!!!!!!!!!!!confused2: