iPhone XR To 2011 Prius Audio

Hi. It’s been awhile since posting... just connected my new iPhone (deleted old one) just fine. But music stored on the phone won’t play through Bluetooth. It saw the phone, don’t know why it won’t play music. I’d rather not use usb. Thanks!

 

Looked up online. First you have to delete all phones and internal audio. Then first, add the audio, then the phone, in that order. Here's a link for the video instruction.