rickrman
XS650 Enthusiast
OK, here we go. If I get the 4 posts and the plate off, do you want the housing?The 4 post and the plate that they are attached to are all one piece, it all comes off together once the serrated lock nut is removed. It just pulls (or more likely pries) off. You specifically do NOT want to try to rotate it off, or you will break a tiny alignment pin on the back side of the plate.
Try bending one or two flat tip screwdrivers into mini pry bars. It can be very stuck. If you have a heat gun, heat would probably help.