I removed the plastic cover from the seat belt support column so I can replace the ripped vinyl. But the seat belt that goes through the plastic trim piece needs to be removed. The seat belt is bolted down in the rear passenger footwell area, but I don't see any way to undo that bolt. (I know not to mess around with the 'business end' of the seat belt where the spring and pyro are).

Thanks,

Jeff 1991 300d, 111k