I forwarded your info to my mechanic who has been absolutely swamped so have not been able to get the car in to have the locks fixed. However today is the day! The car is going in to have the actuator replaced. The mechanic was able to locate the part and find a time to do it today so I'm quite optimistic. Driving around in a car that sounds like a machine gun being fired can be a bit distracting. I'll let you know how it goes; thanks for the follow up!