I know it's probably a waste of time, but thought I'd ask. I'm going to have to replace the rearview mirror at some point, and would consider upgrading to auto-dimming if one were available that would fit in the stock position. I've no interest in gluing a button to the windshield and hacking something up from the aftermarket.

Any chance, or pipe-dream?

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1989 300 SEL that mostly works, but needs TLC