Thanks for pointing installation thread I didn't read it before.
I think I've plastic prying tool, let me try with that, basically start at top is that correct? I can just pry it, right?
I got this, now trying to install it.
However how do I actually remove mirror base.
More accurately how do I remove this (looks like this needs to be off car otherwise I can't make holes properly):
I may need to remove plastic piece inside, but does it just pop? (Don't want to apply too much...