I own a 1974 Cadillac Eldorado convertible which has a passenger door which will not open. I think the door unlock mechanism is rusted up. The key doesn't turn the cylinder and you cannot open it from inside the car as the handle will lift a short distance and then quit moving. I dearly love this car and don't want to have to cut into it to open the door. So I'm asking y'all if you have any ideas on how to go about getting the door open. If I could do that, I could take the inner panel off and get at the lock/latch mechanism inside and repair it.
Thanks in advance
Andy