Hey guys.. so heres my question... I have a 03 LS430 with just a regular radio head unit.. i work at a cadillac dealership and got an 01 LS430 in on trade.. it has a navigation headunit and radio in the trunk because of the upgraded dvd player in the car.. could i just swap out the navigation with my regular one or is there things i need to do or things i need??? ur feedback will be most helpful