Iphone connectivity issues

I have a 2016 Challenger Cat and an Iphone 6S. It's paired to the system. I can call and answer phones with it, as well as, listen to Pandora and Itunes. However, if I want to listen to something form the web, or youtube, or Waze app, I can't get it to play through the Uconnect or via the USB port. Is that common?
Its dumb but apps like youtube require that you leave the phone on for it to work. Once you turn off the screen they are disabled.
Even when the app is up and running screen on and Waze as well it doesn't transmit sound
I use the waze app on my andriod phone and can hear the sound fine. Have you tried making sure the bluetooth media is selected on the radio when using the waze app?