Can you provide some pictures of these caps you snapped back into place? Much appreciated!
See the red part on the mirror? That's the mirror cap, the body color portion of the mirror.

Can you provide some pictures of these caps you snapped back into place? Much appreciated!
I believe both mirrors are convex?
My mirror was fixed. It is now much more stable (but not as still as other cars I've driven). I consider the mirror issue resolved.
Hood was fixed as well, but I am still seeing vibration. Perhaps it is slightly better. I don't know if it can be completely be resolved, perhaps the procedure did not work because the glue needs to cure at a balmy ~70F and it was pretty cold the day of the fix. I am thinking of removing the noise reduction thingy attached to the bottom of the hood to inspect the glue.
The only time it vibrates is when going over imperfect surface, such as highway patches, even ones which you will not slow down for. Is yours vibrating in a similar way?
so still no TSB in the US for the mirror shake? Has anyone with a '14 had any success getting theirs fixed by a dealer? Took mine on a road trip recently and noticed it, would like to get it fixed, but to me it's not serious enough to have to jump through a bunch of hoops and fight with Mazda.