The 12v vs. 24v problem can be solved with a simple converter if the correct voltage motor can't be found.I don't have a good visual of how the motor mounts, so it's really hard to know which of the many motors out there might work. LOL cannot believe this I let the blind fall down replacing a clip to hold it in place a 20 cent clip Pictures?
Are these sun visor shades? Carefree of Colorado makes them also if you consider replacing the whole unit.
They aren't these are they?http://mcdinnovations.com/products