I have a '91 945T with electrically-adjusted (but not heated) mirrors in a fold-in housing. (No idea what other years and mirrors this resembles.)

If your mirror glass falls off and breaks into a thousand pieces, and you need that fixed *now* because you're on the road somewhere, I have a good first-ditch, all-else-closed option: Model #99012 from FitSystem or K-Source.

It is listed as fitting Chrysler Corp minivans, 91-93 heated & power, and 91-95 power-only or manual-only. It is flat, rather than curved (no "objects are larger than they appear").

The driver's side fit was fine. The outlines are a bit rounded and smaller than the space which it mounts on. That turned out well, because you get one shot to fix it to the double-sided tape.

The cost was under $10. When it falls off, I'll think about an exact replacement, but in the circumstances I found myself, I could barely ask for better luck.