Autonomous

Find and disable the antenna used by the cars electronics.

So disconnect the speaker and the noise should stop

Snapcast is great, I use it with MPD for synced whole house audio

Lacking in intuitive interface and pretty buggy at times, I suspect most that use it enjoy the flexibility it introduces to work with multiple data sources, multiple playback devices, and DSP features to normalize audio.

Just remember that if you, or anyone you are talking to, has notifications turned on (in the app itself), that conversation is now outside of signal and a lot easier to get to.

GrapheneOS devs have a very “I will tell you what to like, and you will like it!” attitude, which results in UI and navigation choices that bug the crap out of me.

But I have to admit that for security and privacy it ranks at the top.