As far as the opening the door from the inside, I had to fix that myself after replacing the speakers in the door. There is a cable from the handle to the door. It needs to be clipped in place at the handle, but also further down on the door. I clipped it at the top only and closed up the door card. Then it wouldn't open
Popped open the door card and secured the cable on the door and it fixed it.
Your other problems sound like some electrical issues. Did you just recently get the car?
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The Baby:
Darla, 102k, '99 New Beetle GL 5-speed. Bone stock. Acquired 4/6/05. Gave her life for me 8/17/11. RIP
The Project:
Klaus, 180k+, '84 Jetta GL Turbo Diesel. Rebuilt and bringing 50+ mpg. Slightly improved from stock
Acquired 7/12/08
The Baby Brother:
Günther, 20th Anniversary Edition GTI
The money saver:
2001 Jetta TDI GL. 114k. Dead auto, swapped to 3 pedals. Hubby's DD and our trip car