[silverfoxS65]

Currently I'm experiencing some inconsistencies with the BT audio quality from my iPhone.
Currently I use Spotify and I have the downloaded songs quality setting set to extreme.

While listening to a song I can hear the quality level go up and down...basically as if the bit rate is going from like 320 to something below 128.
I could totally understand this inconsistency if I was listening to a streaming song while in a area with limited LTE. But when I have playlists downloaded to my iPhone set to extreme quality level I wouldn't think I would have this issue.
I also tried playing a song from Apple Music on the same phone...same issue
Btw...I have a iPhone 8 Plus on newest version of iOS

I also had a friend in my car and I paired his iPhone XR and he played something from his Spotify with the same result.

I'm wondering if there is something I have overlooked or a known SW update needed in car?

Btw...I bought the car a year or so ago and when I first got it...I did not have this problem
It's something that kinda just showed up at some point

Also hard wired via AUX cable and issue went away

Your help is appreciated