Forgot to mention that. Battery tested fine as well. It tested fine about a month or so ago when I got it shared when I thought it was the issue. Then about a week or so tested the alternator while in the car and both bat and alt came out fine. A few days ago tested the battery and it tested fine.

Which is why maybe voltage regulator or fuse. I really have no idea. It’s been quite the adventure with this thing so far.