Do the map lights work in the overhead console?
You could pop off the overhead console to verify the motor is actually getting power from the ope/close switch. To do this, pull down on the edge of the console closest to the windshield. If you give it a little bit of force it will pop and hinge downwards for removal. The clips holding it in are metal, don't be afraid to give it a little muscle.
You'll have to trace some wiring, and do some research on which wires are for what, but definitely better than $2k.