Someone's probably going to come along and say that metal bracket blocking the upper left hand screw can be removed, but I looked it over a bit and couldn't find a way to take it off. I've done a good bit of searching and can't find any easier way of removing the fuse box.
Originally Posted by dylim
It's just an extended fuse. So one fuse becomes two fuses, with a wire to connect your new component - check here (add-a-circuit):
You pull out the old fuse, put the fuse in the add-a-circuit, put one more fuse for the new component, and connect the wire from add-a-circuit to your new component.
So if the instructions say to connect a wire to PIN 8, I guess you need to figure out which fuse PIN 8 connects to and add the tap there?