Are u using android or iPhone? For android, u can download Android Auto Apps downloader (search aaad apk) and then there are a few apps from that store which u can use (for YouTube). I'm currently using Fermata Auto which is a native app that you can use directly on the IX. This lets u browse the web, play files from your local storage or watch YouTube (even while car is in motion but not recommended).
Can't seem to find any apps or even screen mirroring to get Netflix/Disney+ to work yet though.
Hope this helps