Fun find: on my P3D+, media volume increases as the HVAC fan speed increases; decreases when the fan speed decreases. Probably wouldn't have known/sensed this functionality if not for my HVAC fan going offline (i.e. no airflow coming out of vents) but the MCU HVAC settings/controls still responding to touch.
FYI: HVAC fan going offline is a known issue that is waiting for a firmware update. Current fix is to to a 12-volt "reset."
FYI: HVAC fan going offline is a known issue that is waiting for a firmware update. Current fix is to to a 12-volt "reset."