[Poor-sche Lover]

I'm still trying to get to know my '88 cabriolet. I don't have an owner's manual so I can't look at the diagrams. I have several switches and knobs that I don't quite know what they do. The top has been converted to manual, so I'm sure some of them are dummy switches by now. I have to know, though. From left to right, here's what I know.

1) This is a small black vertical knob with a silver face. It twists with a click, much like the intermittent wiper knob. I have no idea what it does.

2) This is a forward/backward black toggle switch. I entertain the possibility that it may be aftermarket. I have no idea what it does.

3) This is a forward/backward black rocker switch that still makes noise as I move it. I think this is supposed to control the cabriolet top. I'm just surprised it still tries to operate.

4) This is a left/right black rocker switch. This one I actually know. It operates the left/right mirrors. Again, I'm surprised that there seems to be no "neutral" position. To the right is the right mirror, and "flat" is the left mirror.

5) This one is the kicker. I didn't even know it was there until last week. It is similar to the toggle switch on 2). However, it is mounted in the rear corner of the glove box. Again, I would expect that this is aftermarket, but I can't figure out what it's for. I think the wires splice into the loom that goes into the radio. Has anybody heard of any switch like this?

Thanks,

Alan