09-12-2021, 08:43 AM
The sinks are gone because by default (on fresh instance of the OS) echo cancellation and LADSPA modules are not loaded. They can be loaded on purpose (e.g. Hands Free calling wich is used by OpenAuto Pro). You can try to use /home/pi/.config/pulse/default.pa config from OpenAuto Pro image in your fresh instance of the OS and check how it behaves.