I replaced my mirror to add High Beam Assist.
The replacement mirror would not light up at first.
I thought there was something wrong with my wiring or the mirror.
Then I read that you had to default code the FSD after changing the VO.
Sure enough after doing this my mirror lit up, the compass came on, etc.
I don't remember if that also affected the Homelink or not, but it definitely affected everything else.
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