Up for sale is a Classic 900 Door lock actuator. 

Saab Trunk Lock Actuator 8591224


note: 1982-1994: 5 dr, all doors except driver & trunk -
note: 1987-1998: all doors except drivers & trunk

Good functional unit removed from an 92 900-S.  Comes with a 60 day functionality warranty.  This part listed at 1/3 "saab list" price.  The central locking worked in this car!