Yeah, I lost my first one like a week in when it fell into the (automatic—I'm not cool, I don't drive a manual) shifter. It was so small it managed to fit into the little gap in the rubber guard around it. Lost forever, or at least until someone tears apart the center console of that car for some reason. Only time I've managed to lose something that particular way.
1. I plug dongle into car aux for my iPhone 12 mini to use.
2. Next day, girlfriend wants to play her own music from her iPhone 6, I say to plug the Lightning in.
3. Dongle doesn't work with iPhone 6 despite being same connector -_- She takes it off to plug into the 3.5mm.
4. Dongle falls beneath car seat and is never seen again. Presumably it's next to the other one that got lost the same way.
Went from "it just works" to screwing up the most basic functionality ever, plugging in the damn aux. And it's while you're driving.