Let's add it up - I ain't no Jason P but I will try - well some smart person will get us part #s for the driver and passenger mirror assemblies for Escalade - and maybe at GMpartsdirect it isn't too horrifying a price. Times two. Plus the cost of one power fold switch.
Big problem for those of us with a color other than black (I do not think we Avy owners have a match for the EXT's "silver sand" or its "white diamond" colors) is just that, the color issue. Perhaps the color piece of the mirror is removable, and if so we can move the piece from our old mirrors to the new ones - other opition is to just go with black, whatever your Avy's color. I really hope the color piece is removable, it would solve a potential problem. Another possible solution lies in the fact that the regular Escalde also has the power fold mirrors, and it comes in FEW other colors, but I bet they do not match our colors either. Plus I do not know if they fit the EXT/Avy.
Then we would also need the switch - it looks like a button, I do not know if it acuates a process as in the sunroof push once and it opens sort of thing, or if it has to be held down - another trip to the nearby Caddy dealer for some demo time would help. If the switch does not occupy too much space, I know where I will put it. (On the Escalade the power fold button is wholly separate from the mirror adjustment stuff - so I know it is a self-contained switch). I hope the mirror unit itself has two plugs, one for the regular adjustment switch and the other for the fold in circuit - but I do not know. Either way I can figure the wiring out, but it would be cleaner if they were separate. If we get prices and I do some more recon work, we will be closer.
I have the same garage door side-clearence problem, and getting out every time I leave and every time I come back is getting really old.