Try to set the config via an environment variable like described in `man pulseaudio`:
PULSE_CLIENTCONFIG=/home/username/.pulse/default.pa pulseaudio --system --disallow-exit --disallow-module-loading
Try to set the config via an environment variable like described in `man pulseaudio`:
PULSE_CLIENTCONFIG=/home/username/.pulse/default.pa pulseaudio --system --disallow-exit --disallow-module-loading