Power Seat Doesn't Move If I'm Seated

[lokadero]

Hi,

I just bought 97 SC400.

now this power seat only moves when i'm not sitting. this can't be normal, right?

it moves fine if im off the seat.

so what could be the problem?

i wouldn't think seat motors will lose that much power...?

maybe the seat rail guiding losing lubrication maybe? and giving more friction to drive it?

if anyone had the same problem and knows why, please help.

also, does stock nakamichi audio got line-in by any chance? for mp3 players?