'94 E420 Question

Hey all,
Here is the series of events. Everything worked fine as it should. Then the Radio antena started to go up or down only half way, sometimes all the way,
sometime none at all. During this time the outside temp display didn't work. Now it works sometimes where the dash display reads faintly, then normal, or not at all. Most times the display will work after 15 minutes of driving. The antena has totally stopped working now and doesn't sounds as though it is trying to work. I heard on Click and Clack one time that the ignition switch could be the issue? But this doesn't answer the question as to why the antena doesn't go down or up after the car has been started!
Help in any way please.
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