Moreover, I noticed in the comments that A10 & A11 (pins 24 & 25) shouldn't be used for audio, and A12 & A13 (pins 26 & 27) shouldn't be used for analogRead
Sorry, I should have more specific on information source...
A1: In my experience, the CS42488 reset line startup requirements are a bit sensitive. You need the CAT811T to make sure no short glitches occur during the power up process. If a glitch occurs, the CS42488 doesn't reset...