The other fuse box is a rectangular shaped black box in the battery well thats bolted to the fender panel vertically. You wouldn't think it was a fuse box but it is. There will be a large bundle of wires coming from it, that's your cue. I believe the box slides up if you pull on it and comes free. The cover you have to pop off from the bottom side of it, but once you pull it free, it's a lot easier to access. This should be where your culprit fuse is.
