seatbelt bolt. have u found that? and pop the snap at the base in the inside(pull strat out from the botton. but it look u will have to try to rip of the inside post from the screw that's behind the black cap.hopefully u can get the rest of the door panel off without doing that.
RIC my spelling sux 1993 Onix Black over Tan NA if people would read the FAQs life would be good, and admin wouldn't have to delete a ton of posts