I know almost nothing about wiring, so I'm hoping someone can point me in the right direction.

There are multiple wiring concerns on my 92, and I suspect they're all related to shoddy installation.

1. The driver side window doesn't move. The seller provided a new motor, but I'm not sure that's the issue.
2. The driver side window switches don't work.
3. The driver side lock switch doesn't work, but the mirror adjuster does.
4. The front speakers on both sides don't work, although the rear ones do.
5. A factory spoiler was added later, but the wiring conduit for the integrated brake light is zip tied to the deck lid arm and hits the inside edge of the trunk.
6. The driver side door doesn't seat properly - basically, it's open just enough to make the car think the door is ajar, and the courtesy light on the door stays on permanently. Because of this, the interior dome light will never turn off, so I'm forced to leave it off. This isn't so much a wiring problem, but I'm not sure how to fix it, and I suspect that any fix will involve taking it apart anyway, so I listed it here.

Help?