I just bought an 07 9-3 and it has what seems to be notorious door lock issues. I can find the cables decent enough pricing but can't seem to find a rear door lock actuator for under 260. The one I have is rusted tight and won't keep the door shut. I know these share a platform with a lot of gm cars. Does anyone know if the actuators will swap? Or have a good working passenger front and rear ones to sell?