The volume of the turn signal and fatigue driving warning sounds is very low. How can this be fixed?

Hi Guys, I have another question that needs your help.

I have a 2019 Focus, the China version. After installing the latest European version LCD dashboard, I noticed that the sound of the turn signal indicators is very low, even when the car is stationary. By disabling the “Turn Signal Speed Sensitive Volume” setting in the IPC module, the problem improved slightly. However, when the speed exceeds 50 km/h, the sound is still too faint. Additionally, the sound for the fatigue driving warning is also very weak. When driving on the highway at speeds over 100 km/h, with APIM playing music at a volume of 6, the warning sound is barely audible. But the alerts for unlocked doors, unbuckled seat belts, and an engine not in Park gear are audible as usual. Currently.

This is my instrumentation module:
IPC-Dashboard control module part number: RX7T-10849-SCG
Calibration level: RX7T-10849-SCG
Strategy: RX7T-14C026-SCG

the setting for “Chimes – Primary Source” in the IPC module is set to “Audio Speakers Only”. Does anyone know what’s causing this?