First, JimmyFloyd: I don't have a picture of the climate control, but I think it'* just backlights. I'll get to it soon if it does cause issues. The aftermarket stereo is something I did so that I just have 12V from the battery, accessory power, ground, and remote turn-on. The remote wire I'll actually disconnect shortly because I have other things to do with it.
Anyway, the speakers get their signals from pretty awesome RCA cables going to amps, which are disconnected completely but for speaker wires as of now.
Ok, I have a huge update. I have found the problem. I took out that little trim piece of my dashboard that holds the cigarette lighter and goes to the giant switch for the dome light, headlights, and so on. I have pics, too.
Here'* the progress:
The tail lights on the trunk lid do not work at all. Not a bit. No voltage with my multimeter.
The outer tail lights work only when I pull out the headlight switch, but they don't turn on automatically. Also, they work at about half voltage, or 6.23-6.31V, according to my multimeter.
When I hit the brake pedal, the working rear lights turn on even brighter, and it hurts my eyes to look at them. So that'* probably good. I haven't checked that voltage.
It used to be that the front-left headlight would work at half power, but not since I replaced all my battery wires. It'* working a lot better now.
Here are pictures of my switch, which I took out of my dasboard a few hours ago. Click on the pictures to get to the bigger ones.
The camera I used for this is really, really bad. Those are some of the best pictures I've seen from it, and I'm trying desparately to find my other camera. Well, anyway. The switch looks complicated, but it turns out it'* a rheostat for the dimming part, and there'* some circuitry in the back to control the lights. I saw one big, fat red wire coming in, a small ground wire on the side (you can see the connector in the pics), and a few other-color wires as well. Those are for the lights, I assume. They could go to relays, though. I'm going to check the wiring schematics for it all.
I had 1337ssei come by and help me out a bit, and we traced almost all the issues back to the switch. When we messed with it, we found we could get the dash lights, headlights, and some of the tail lights to work! Not only do I assume that the switch is bad, but the corrosion on it is so horrible that I don't want to bother with cleaning it. It'* very worn out. If anyone here has this switch, I'd be happy to buy it.
Another option I have would be to find out what the differently colored wires are and then custom-make my own switch for that area. This I'd prefer to do in a perfect scenario, but I may be running out of time. If I have to move my car, I'll use some wiring schematic to short out the wires to get working headlights and tail lights, and I'll drive it elsewhere. So, what do you think from reading [i]all]/i] of this?