Hi and welcome. I would check to see if you have power from switch when trying to put the window down . if you have no power it is more than likely the switch. since it goes down with top switch it sounds like the switch can send you schematic if that will help. The wiring loom has allot of wires and tough to tell which is correct wire.
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here is the schematic for the switch. I don't have diagrams for removal sorry about that. you might want to have dealer do this job or good saab guy.
Sorry no You could call around to see if anyone repairs saab or check with a body guy they might be willing to do the job