Fuse Box/Battery help '86 Cab

[tschall]

Thanks in advance for any assistance. New to me '86 Cab with PO having two separate sound systems installed by God only knows who. They ran new power feeds directly from battery thru firewall and boy did they NOT understand wiring. That is not the worst of it. The main Fuse panel has 4 fuses with NO line feed(from Battery). Additionally some fuses are omitted/some line feeds gone, and what else is anybody goes (yours please?). See Pix below. This car is highly optioned (factory) to make matters worse. Fuse box diagram states 21 fuses in groups of 3, 10, and 8. In reality 3, 10, 8, 4 in Frunk, 3 more in Engine compartment and lots of unhooked stuff under dash. Have about 18 hours in this rats nest and looking at a doctorate in old school German wiring at the glacial pace I am making.
Pix below:







Thanks all!

[Discseven]

TS... rat's nest is understood. But what exactly are you looking to accomplish? What is the question(s)?

[Hotshot]

I’d replace those first 3 cheap blue plastic fuses with the ceramic fuses like you have down line. They melt vs blow.. ask me how I know...

Look at my pic, the 3rd blue 25a fuse is the proper ones.

Also, clean the contacts on each fuse and make sure there held in with good tension. I used a brass wire Dremel tip.

[tschall]

Thank you. The car is new to me and I'm trying to figure things out one step at a time. After market Engine Strat/alarm and 2 stereo "upgrades" later with all associate wiring problems/additions are really stressing me out. Slowly finding details and making corrections to original or as close as possible. Fuse Panel 3, fuses 2&3 hot at all times. Fuse 1 when ignition ON only. Fuse Panel 1 (positions 1 - 10) largely operational. Fuse Panel 2 (1 - 8) headlight switch driven for light functions, some operational, some missing fuses, load side power issues.
Engine Compartment Fuse Panel 1 - 3 positions are still a mystery largely because the assigned fuse positions have no functions as listed in wiring diagrams.
I have a bundle of 2 brown/red stripe wires with 2 brown (grnd) wires, and a small 18 red (hot when ignition ON only that are a complete mystery. Near radio, under dash. Should be r/l door speakers, but no they're not. Thin red is WTF?
Any help appreciated guys!

[Hotshot]

You need the stock 86 wiring diagrams. There are links on here places with them. Then it’s just a matter of ripping out the mods.