What is it you what to power?
I personally would probably not use that item. If I understand it correctly, you remove a fuse and then put that in it's place and then
reinsert the fuse you removed and then you have a wire for power, right? However then you can't shut the cover/door that goes over the fuses.
I would find a power wire and splice or tap in to that and if you really needed it, you could get an inline fuse holder for a couple of dollars.
I believe the orange wire is keyed to the ignition switch if that is what your looking for.