iPhone 15 Pro Max Bluetooth Sound crackling and No CarPlay Connection

I have the new iPhone 15 Pro Max and the CarPlay and bluetooth is not working.

I have added my device to the media section on my Subaru Crosstrek 2018 car settings and successfully paired it. The sound connects via bluetooth but speeds up/slows down the music and gets all crackly and jumpy with Podcasts app and Spotify (haven't tried other apps).

I also have it plugged in for a wired connection and it will not show up on CarPlay but it is charging. I am getting a new plug adaptor and will try the new iPhone cord that came in the box with the adaptor (USBA male to USBc female) as soon as the adaptor arrives. So far it is not working with my USB -C to USB-A cord which I have plugged directly into my car.

With my previous iPhone 13 Pro I had intermittent CarPlay connection issues but now the iPhone 15 is not connecting to CarPlay at all.

Hoping for a software update from Apple soon. Fingers crossed! =)