ihave a1998 a4 that ijust bought that is my 13 audi ibuy and fix them up except for m cary babby a4 ive owned since new 5 years ago bought it new right off the lot im pretty good at fixing these carsi know them good but the queston i have is i changed the passanger door on 98 a4 and now it wont start the car came with the origanal door handle missing the door i put on is from the wrecker so the lock is diffrtrnt ican turn it with the origanal key ithink that why it wont turn over anybody have any sugestio ns