You no doubt have realised that this is a click bait title !! ππ€ͺπ
As you all already know HomeLink comes standard Tesla Model X and Model S. But unfortunately in Model 3 it is a AUD 300 upgrade. And unlike this DIY project, installing HomeLink circuit is not as easy. It involved taking out the front bumper. You can get it installed after the fact and a Tesla Mobile service team should be able to help here.
But if you like HomeLink to work I suggest you opt for the upgrade from Tesla before your Model 3 is delivered.
Watch this video and decide if you are willing to …. DIY your existing garage door opener!
if you already have a Chamberlain garage door opener you may not need this at all.