Hey in my 1993 Ruby Red vette certain features of the seat do not work. In the drivers seat the six way power adjust works, but the side bolsters do not and the lumbar supports only fill up in one zone that quickly loses pressure. As for the passenger seat the six way power seat works, but again the side bolsters do not and the lumbar supports do not seem to function at all, they don't even make a noise like the drivers seat does sounding like a small air compressor. Any ideas as to whats wrong and what parts it would take?