91 100 sunroof HELP

[DGraber460@aol.com]

My 91 100 has decided to let the sunroof fail in the open position. Is there 
a way to get it closed for my wife's morning commute?
It had recently quit stopping between motions. That leads me to believe that 
a position switch has failed. Where are these located (if in fact they 
exist), and how do I access them? TIA

Dennis Graber
I wont make any brownie points if she has to drive to work this way, and 
needless to say where she has to park it needs to be locked.