Any advice before I take the truck to someone?

[SCAR911]

What about _your_ relay? Up fitter 5 is like 5 or 10 amps tops. You’re not running a compressor off up fitter 5 with no relay are you?
To quote Noah @The Car Stereo Company : “Only you can prevent truck fires"

I don't know shit about electrical. It was all done before I bought that truck. I wouldn't even know how to check it with all this wiring. Truck has a air comp, chase rack, lights, retractable side boards, winch, amp, stereo, ****** radar detector.....just shit all over.

 

[SCAR911]

 

[SCAR911]

Also found this. 40amp fuse for what I think it running board lights.

 

[Nex]

Why does it look like that wire is too small for a 40 amp fuse?