I'm not sure how it ever started, being wired like that.

 

The old backfeed we've been through before. The reason fuse #1 has anything to do with starting is that somebody hooked the battery to the PS stud and the power is going in the wrong direction. Probably some fried wires lurking around.

 

I didn't read the manual before jumping it, but didn't think it'd harm anything as I did it straight to the battery in the rear.

I corrected the wires, putting the starter cable on the frontward post with the battery cable. Hopefully that will stop popping that #1 fuse, and hopefully the crank fuse (#5). Sure glad messing around in there replacing fuses I noticed the cable. I wonder why someone even did that???

 

Somebody took it apart and had a bad memory. Many, if not most people think the fuse box is the battery.