So I just got a honeyburst fender American special from GC's used site , and while its in great shape, when I plugged in in my garage, it hums like a single coil. I even tested it against my yamaha bb424x, and when it's in single coil only mode, it hums exactly the same. When I use just the p pickup on the yamaha, dead silent. Now I took the pickguard off to try to see if there was anything obvious, but I can't really tell. I'm not that up on my wiring. It does look like some wires were poking out of the pickguard a little and there was scratching at the edge by the finish like someone tried to push them back under. That would imply that someone might have take it apart at some point. I also don't really see the claimed "greasebucket" wiring. Is there anyone here with knowledge of these things that can tell me if there's anything obviously wrong with the wiring? Thanks!