Confused with wiring a Gentex rear view mirror

[Mabcim]

I have pretty much figured it out. I was thinking you might want to make an addendum to your guide to help people with my issue. If you have a newer Liftmaster or Chamberlain, you need to make sure that the mirror comes from a newer car and that the model number ends with HL4 and not HL3. The model number of my mirror is ZTVHL3, which specifies that it is a Homelink 3 and thus not compatible with Liftmaster Security+ 2.0 garage door opener. I went through a ton of ebay listings and found a few that end with HL4, including a model number HFCHL4, which is from a 2015 and new Hyundai and Genesis cars.

Good idea. I will add something to the post right now.

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