That OEM mirror was a bit of a pain to remove. I spent 30min trying to figure out the tab, so I pried and snapped it. The mirror was out afterwards with no visible damage to the glass. However, the wire cover that came with it is a bit on the short side.
BTW, for those who run a microphone to the a-pillar, it's nice to route and hide the mic underneath the map light switch location. Look Ma! No Wires!
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