Although optimized to work with the script available in the forum, power management works by default in hardware mode without having to modify the audio solution retained.

Here is a schematic diagram of connecting from one terminal to another to "shunter" the microcontroller. It is therefore necessary to remove the AT Tiny85 microcontroller from the circuit as indicated.
In this case it will be necessary to use a switch (permanent contact) to keep the Raspberry Pi on.

DIFFERENCE OLED SCREEN CONNECTION

SABRE V3 GEN 1 GEN 2 GEN3

Connection SABRE V3 GENERATION 1 straight wiring pine pin

Connection SABRE V3 GENERATION 2 WITH IR Ribbon 2 is reversed

Connection SABRE V3 GENERATION 3 straight wiring pin pin and remote IR