The replacement mirror arrived today (I'd purchased it from an Ali Express store called "New Oem-accessories Store" after finding it via part number 851013X000).
Found a video online (
- YouTube) that demonstrated replacing the mirror for another vehicle, figured it would be the same process and it was.
Basic steps were to pop off the plastic shroud/trim piece that covers the arm the mirror clips into, then locate the set screw on the bottom of the mirror and unscrew it.
Then slide the mirror forward and it comes off.
Un-clip the wiring, and basically reverse the process to put the new one on.
Got the mirror adjusted back into place. Turned the car on and made sure the mirror turned on/off (it did). Will be able to confirm the mirror dims correctly in the morning on my next drive.