Remove the rubber pad of auxiliary instrument panel armrest box. Refer to Removal and installation of rubber pad of auxiliary instrument panel armrest box 

Power off the low-voltage electrical system. Refer to Power-off and power-on of low-voltage electrical system 

Remove 3 fixing screws from microphone base.

Disconnect 1 connector and take out the microphone base.

To replace the microphone base, remove the following accessories from it:

• On-board U-segment microphone charging base. Refer to Removal and installation of on-board U-segment microphone charging base 

Install it in the reverse order of removal.