BTW the pooping sound between tracks on Play Music when using the AUX cable seems to be fixed with 6.0.1. Like other audio apps it only pops once when playing something for the first time then it is fine after. Too bad I would have not gotten a Chromecast audio if it was fixed earlier.
Also got the Chromecast audio update and volume does not seem to default to full blast but it seems louder at lower volumes. The sound quality is better but still only Play Music app lets you control the volume from the app.
My Router: Netgear R7000 - Advanced Tomato 3.5-140 K26ARM USB VPN-64K.
My Primary Streaming Device: Apple TV 4K (2017).
Cats are the best pets.