Paul,
Right now, the center dash panel is removed as I have sent the A/C Climate Control unit to Jay Walker. The Time/Temp LCD has been BLACK for years, and I decided it was time to fix it. He seems to be very knowledgeable, and am confidant he will send it back better than new.
I have operated the four-way side view mirror switch, but not in the way you propose. I'll try, but it's not encouraging though, as it is both loose and inoperable.
As soon as center dash is back together, I plan on following your suggestion of a radio shop. Good idea!
Thanks,
Richard