I think you guys are missunderstanding what I found. Where you would normally put the fuse to dissable AWD and put the car into FWD I found two wires installed where that fuse would go -- one wire where each tab of the fuse would go. The wires run through the firewall and to a switch under the dash. Therefore, someone rigged this car so that AWD and FWD could be switched in and out. Closing the switch would be the same as installing a fuse and closing that circuit. I'm sure of what I found, and all else is fine -- wheel size, etc.
When I put the wires back into the fuse holder I can switch the car into and out of AWD. I tried it. It's not just the light. The car is definitely switching from AWD to FWD (I live on a hill that's a sheet of ice right now, so it's a good test).
As I said, I must have hit the switch with my foot getting into the car, and the switch is very difficult to see.
Question is, why would somebody do this?
Sheldon