Android Head Unit Chime/Blinker Volume and Factory Microphone Fix

Today I am working on the Suburban wiring in a volume control knob for the system sounds (Blinker, Chime, Backup Sensor etc). I also wired in the factor mic to the head unit for better audio when on calls. I installed a new Android head unit and the system sounds were extremely loud and distracting and the head unit's mic doesn't pick up well.