Hi robert olesen,
We appreciate you reaching out to us. We understand that you are experiencing audio-related issues with CarPlay.
We’d like to gather additional details that may help us be in a better position to assist you.
How is your device connected to your vehicle?
If you are using wireless CarPlay, have you had the chance to connect your device through Lightning cable?
If you are using Lightning cable, have you had the chance to try a different Lightning cable?
Also, have you had the chance to use CarPlay on your vehicle with a different iPhone?
Or use your iPhone for CarPlay on a different vehicle?
In the meantime, we recommend that you make sure that you are using the latest version of iOS 15.
While it isn't inherently assured that an update will resolve the issue, updating to the latest software version for your device can help isolate potential software issues.
Kindly secure a backup and update.
How to back up your iPhone, iPad, and iPod touch
Update your iPhone, iPad, or iPod touch
If your device is already up to date, we recommend that you look into the article below.
If you need help with CarPlay
Take care!