alternator fuse melted questions\advice

[Beausoleil74]

I'll give a bit of history Maybe something in there might give a reason for my alternator fuse to have melted.
1996 delica 400 space gear gas pd6w. I'm also confused on which replacement fuse box I need.

History:

Nov I noticed my headlight wasn't working and discovered the daytime running unit had melted at the fuse. I took it off and lights worked. No issues.

Feb 4 2016 Left lights on overnight. Booster cables were a cheap shit set and couldn't reach to ground so connected on all posts. With other car off it would not turn over. Started the other car and it boosted after a few minutes. Did this melt it? Seemed fine.



Feb 20
Battery light went on. Radio and heater cut in and out. Checked connections and alt belt. Both fine. Checked battery was low so charged and discovered fuse melt.

My buddy, Charles Black is going to show me how to check if the alternator is the fault and or dead. He is convinced it was not my idiot boost and might be a loose ground.

[Beausoleil74]

Here are the fuse pics. I assume it's the alternator fuse from a few diagrams I found online as well the Google translate of the fuse box cover. They and 100 a and 80a fuses

Also a pic of a strange wire on the positive post which goes into the cab on the passenger side. I had to disconnect it to get the booster cable on.

[Beausoleil74]

The mystery wire. The blue casing leads into the body.tried a bunch of times but forum doesn't like that pic.

Obviously I have not driven since this discovery.