1993 with the marshmellow headrests for ref. Shouldn't be too hard to find them and swap them since the seat backs never changed between 1993 and 2002.
This is the next big fix/mod after I do the speakers, spoiler, paint touch up, and headlamp. Oh.. and for those of you who also like 4th gens.. bow in envy. We had this factory option.
It's like the IOM of 4th gens.