I was gonna say it's already an option (along many other apps btw) in the manager, but someone already let you know. The latest apk of yt music works btw. The recommended one stopped working suddenly for me.
Does anyone have a solution for ios on this? There is https://github.com/qnblackcat/uYouPlus/ But I find that the downloads are still extremely slow even after the 3.0 update