Head unit not working

I’m hoping someone in here might have an answer.
So I put in an aftermarket head unit and for over a year it was working fine. One day I went wheeling, everything working fine and two days after my head unit stopped working. Every time I would insert a fuse to the back of it, it would blow. Tried putting power straight from the battery and it started popping the dome fuse under the hood. Any ideas where the issue could be at? Would it be a power wire grounding out somewhere in the main wire loom? Any info would help, thanks. PFA

 

Take HL out and inspect
Probably find some melting wiring
Possible you could repair wires

 

You say head unit, but show a picture of a headlight. Which one is the problem?

 

Skulking, I also put PFA (picture for attention) the issue is in the main part of the thread.