Thanks for getting in touch, we appreciate your feedback!
We haven't received similar reports, so we'd like to first rule out that the causes of these issues are device or account related. To that end could you perform a clean reinstall of the app on your car headset ? You can find instructions on how to do this for Android devices here. If there's third party app access associated with it's use, it's a good idea to remove it and link it again. This page explains how to do this.
As to the PlayStation issue - you can disconnect your Spotify account from Sony by visiting this page. Let us know if afterwards the issue still comes up. You should also make sure that both your devices and the Spotify app are updated to the latest version.
Hope you find this useful. Let us know how you get on.
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“Music is a language that doesn’t speak in particular words. It speaks in emotions, and if it’s in the bones, it’s in the bones.” - Keith Richards