So I changed it out today.
The mirror assembly consists of the glass, a motor assembly, a bracket that bolts to the mirror bucket and the mirror bucket.
I tried to pushing the mirror to an extreme position to expose three mounting screws, but it didn't work. I ended up gently prying the mirror off the motor assembly. Once off, it exposed three screws holding the motor assembly in place. I removed those screws and unplugged the harness so now the motor assembly and mirror were not longer connected.
Once that was done, there is mounting bracket held into the mirror bucket by three screws. I undid those three, installed bracket into the mirror bucket that is on the car, plugged in the motor assembly, screwed motor assembly to bracket and gently pushed glass back onto the motor assembly. It clicked into place.
Tested electric controls, all good, went for test drive, zero vibration. Im a happy camper.
Also fixed my heater blower motor. The thing stayed on all the time unless I unplugged it or the controller just behind the passenger wheel well. Popped in a new controller for like $120 from Rockauto (compare to like 220 at Advance Auto), fixed.
Next step, heater temperature control motor.
Cheers,
Chris