Hi @Annied - Welcome to community!
Sorry for any trouble listening to Pandora in your car. Sounds like you've done a lot of troubleshooting already.
I'm happy to pass this along to our engineering team for further investigation. Could you tell me a little more about your iPhone.
Device & Generation: (e.g. iPhone X, iPad Air (3rd gen), etc.)
iOS version: (Settings > General > About > Version)
Pandora version: (Pandora > Profile tab > Settings gear & scroll to the bottom of the screen)
Thanks!
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