The fuses are blowing because you have a short to ground.
Troubleshooting this type of problem usually requires a schematic, a wiring diagram, and some understanding of electrical circuits. What I’d recommend up-front is
(1) remove that bypass wire and put in a fusible link. Buy a few while you’re at the parts store so you can troubleshoot without causing a fire. You might even use alligator clips on the ends to make putting new links in while you’re troubleshooting,
(2) remove that 30 amp line fuse,
(3) remove the fuses for every circuit that’s noncritical to engine operation,
(4) see if the problem, goes away.
If you’re lucky, this will help you at least isolate the problem to the noncritical circuits… or eliminate them as suspects. The most common places for shorts to ground are where the wiring harnesses go through the cutouts in the body metal. The most common of all are the ones where the harnesses travel from the body into the doors. That portion of the harness gets flexed big time every time the door is opened or closed. Those fuses will be for the power doorlocks and the power windows. If the problem disappears with those fuses removed, you’ll need to remove the inner door panels and the kickpanels, cut the harness open, and visually inspect the harness wiring insulation, splicing and reinsulating any that are suspect.
You might be able to get a wiring diagram, a schematic, and even “exploded view drawings” for the door panel and kickpanel installations from the dealer… because of the age you might have to look for an old repair manual on the internet. These things will be an enormous help.