2012 A3 TDI electrical oddies

these5down

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Few weeks ago fuel for wouldn't open, shut door, started engine, and it opened. thought maybe I waited too long to hit the button. Yesterday same thing, but door open or closed nothing worked. Went home with low fuel light on(not knowing there was a manual release in hatch). Stopped at mailbox and window wouldn't work.

I found 3 broken wires in door loom. I stripped and soldered them, put it back together. Driver Window works but NOTHING else does.

This morning car was dead, jumped it, while driving to work high beams would randomly turn themselves off, HVAC system fan world turn itself up and down, sometimes off then back on. Got to work hit the fob to lock doors, lights flash like normal. I get inside and see my hazards flashing. Go back check doors, all closed, hit lock again, waited about a minute, they did it again. Left unlocked and went to work. After work started fine, went home put obd2 scanner on got P0381. Cleared it, went for test drive and symptoms. Went to Autozone checked battery voltage good, but only at 65%, alternator check good. on the way home light came back on.

Any ideas?