I was at my favorite dealer today asking if I could retrofit Toyota Avalon side mirrors on my Camry SE V6 in order to get the auto-dimming function for the exterior mirrors as well.
1) Totally different housing size.
2) Totally different mirror size.
3) About $1000 per side just for parts.
Lexus mirrors won't work either for the same reasons.
So then I got another idea: apply a light blue tint to them because that will at least reduce glare a little. While the color blue helps with glare, it's only useful if the mirror itself has the hue, and NOT from a tint. Apparently with a tint on the mirror itself, I wouldn't see shit at night since I already have window tint.
So for now, I am deeming the idea of auto-dimming side mirrors as impossible to achieve within reasonable costs and effort on the Gen6 Camry.
My only help is that for the Gen6.5 Camry, Toyota will at least offer the driver's side mirror as auto-dimming in an option. Then I could retrofit from that. But until that day...