Yes, had the battery disconnected immediately.
Worked on this most of the day today.
Attached the replacement wires to the bad wires and pulled them
into the cabin that way.
Heat shrink butt connectors and heat shrink tubing over that
to splice into good sections of wire.
Lots of inspection looking and feeling for anything wrong.
Back killer working under the dash for so long.

Fired the car up. No warning lights. But the windows weren't working.
Blown fuse #7. Also, the ice cube relays for the windows/seats seemed
very hot. Not sure if they get hot or not normally? Maybe fried during my meltdown?

#7 controls the passenger mirror.
I disconnected the console plug for the mirror and replaced all four ice cube relays.

Started the car and the windows worked fine.
Also the #7 fuse did not blow.
Stopped for the day and disconnected the battery.

I will be watching this carefully and getting my nose
up under the dash for the next few days.

Keeping my fingers crossed.

Jeff

__________________
1984 300SD 300,000 miles--two tank WVO setup
2.88 diff & 500SEL anti-squat rear end