My 1986 XJS has been sitting for a while and the locks seemed to have siezed (in the locked condition). I got into the car by breaking out the drivers small window and used a stick to run the windows down. I get in "Duke Boys" style. I can't get the doors to unlock from inside, and I can't unlock them with the key from the outside. The after market alarm is working fine and sounds like the doors unlock......but NO!

Any way to unlock the doors?

Dennis