Is there truthfully a "premium" tape player that works with the factory amp in a 1992? Or will any radio from 87 to 92 work? All the connections seem the same and the amp connections are separate from the radio so that should not be a problem. Ford lists two options without e/q control but the description of the premium radio fits every fox radio i have ever seen since about 1990. The description for the non premium reminds me of what my brother had in his 84'. What gives???