Still looking for a better radio for my '82 Lebaron. What years were silver faced radios available? I know an '82/'83 is a direct fit and '84-2000 radio will work with the adaptor that I have. If the style I am looking for was only available 'till 1987 it would help narrow my search. Also my '82 has, from what I understand, a "common ground" speakers. What does that mean and how does it apply if I decide to get an aftermarket radio?