Weird #GrapheneOS thing today... My car stereo sounded like screechy butt, and this was a big deal considering it's a pretty new car and should sound decent. Because I like to fool with stuff, I used Android Auto in a Private Space to see what would happen. I then noticed that the "Spatial Audio" option was enabled in the bluetooth settings. I turned that off because screw processing. Then I decided Android Auto is a shitcoin and deleted it. But then my radio sounded bad ass. When I looked at the regular profile bluetooth settings, the spatial audio option doesn't even exist. So my radio sounded poopy, but the thing that made it poopy couldn't be turned off, or even found without doing the dumb Android Auto thing. So, in the end, all is well now. In a very roundabout way.
That is a long and semi-pointless story, but there you go.