What's this toggle switch for?

Car is an 89 328, purchased recently. The little cubby hole on the left end of the dash has a toggle switch installed in it. The only thing I can think of is that it's for an aftermarket alarm system. I can't trace the black and white wires because they disappear in a bundle of wires that go under the steering column.

I'm hesitant to throw the switch without knowing what it does. Any clues?

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Good idea but I bought it from a dealer. I have no contact info for the previous owner.

 

A-ha! Yes there are two door jamb switches on the driver's side. It's gotta be for an alarm. I also found a little LED mounted right between the two dash vents below the radio. More evidence of an alarm installation.

 

Ok, thanks. The mystery continues.

I'll try again to see if I can trace the wires from the switch.

 

I was able to trace the black wire far enough to find a 5 amp fuse holder, connected to a red 12v source wire via T-tap. I still don't know for sure what it was for, but I've removed the switch and associated wiring that I could get to. Another thing it could have been is a radiator fan switch override, but I didn't see any evidence around the thermoswitch itself.

Whatever it was, it's gone.

Question: "NOS bottle"?

 

Oh, I thought NOS = New Old Stock