I have been wondering if it is possible and if anyone has ever installed a newer ford hu with navigation and all the bells and whistles into an older expy. Mine is a 97 EB with the mach system. I would like to upgrade to one with navigation for my wife but I dont want a aftermarket one since they are all motorized. I do have kids and anything that i can make child safe, i would rather go that route. What all is involved? Does the HU contain all the stuff it needs or is there some other parts like for the satellite that is located elsewhere? If anyone has pictures I would appreciate it.