Up for sale is a good used Saab neutral safety switch/ transmission range position sensor.  Typical problems caused by this unit are no-start due to no "neutral or park signal"  which can sometimes be temporarily corrected by cycling through the gears several times and re selecting neutral, then re attempting to start.  Frequently these problems are caused by battery acid leaking onto this switch.

Additional from this being the neutral safety switch, this unit also tells the transmission ECU control unit what gear the car is in.  This portion of the unit, if defective will cause a check gearbox light as well as a P0705 code.  This unit is rather expensive to buy new...  Offered here is a used unit, removed from a crash damaged car.  This unit should still work just fine, and I will offer a 60 day functionality guarantee.  It is listed at 1/3 the new part price.