I've got a 1987 300 sdl. I went to the store today and when I came out, it would not start. Key turns, glows, but will not turn to start. After several attempts, and trying letting it roll, and locking the steering wheel, I called my boss to come get me. I went back to the store about an hour later and tried again, but to no avail. After supper I started searching the archives. Went back to the store and removed the lock cylinder. I was then able to start the car by turning the switch with a pair of needle nose pliers. Switch turned easily, although I did have to move it some with the pliers to line it up properly for the a/c to work. Took it to my office around the corner. Shut it down and restarted it with the pliers with no issues. Put the lock cylinder back in and tried it and no go, it will not turn to start position. So, my question is, do I need a new lock cylinder or a new switch, or a new lock assembly? Thanks

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1973 VW beetle
1978 El Camino
1981 BMW 633
1982 Volvo 242 turbo
1983 BMW 633
1987 MB 300SDL
1998 Olds LSS