I have an old Android 4.4 head unit. It was getting slow and the Spotify apps were dated. Downloaded the autokit.app on a USB stick and installed on my head unit. Proceeded to attach the USB CarPlay dongle and connect to IPhone. Voila! CarPlay came up and works! So smooth and not sure why but my audio quality got better and more balanced. Nice to have google maps. So far so good. I hope the dongle lasts. Much cheaper than purchasing an aftermarket CarPlay head unit that has less features.
If you use Carplay and Android Auto in Aftermarket Android Head Unit. You can choose this Carlinkit Product. The product is specially made for Android head unit, which is suitable for model system versions above Android 4.4+. Support wired & wireless CarPlay, and wired Android Auto. Just Plug...