I recently replaced my original fuse box with the new one from martinrobey.com part number 93065. I started getting intermittent lighting issues . After searching thru my wiring and not solving the problem. I checked out the fuse box , the fuses were all good, but the brass prongs holding the fuse in place were loose holding the fuse. I needed to pinch them all, to tighten their grip to the fuse.
I need to inspect them first when getting intermittent lighting. Looks like the loosen up under driving !!!!.