Aftermarket switch?

[Killianlinn]

I recently picked up a 1991 9000 CC Griffin Liftback. There is a toggle switch on the dashboard just above the fog light switch to the left of the steering wheel. It doesn't appear to be connected to anything right now. I'm thinking it's an aftermarket switch installed for the cooling system. Can anyone give me an idea of what this switch is and if I should consider hooking it back up.

[GeoffR]

Given that the original switches in the 9000 were all push button types it is almost certain that this toggle switch is an addition by a previous owner. As such it is nigh on impossible to guess what it was intended to do. The only answer is to trace the wiring, if any, back to whatever it is connected to.