You can delete the local music of car navigation according to the following steps.

step one, open the menu on the car.

step 2, then select settings.

step 3: click general settings in the settings interface, and then click factory settings.

Step 4, you need to enter a password here. Generally, the password is four eights, six eights, eight eights, or four zeros, six zeros and eight zeros.

Step 5: After success, click Clear Test File in parameter settings.

Step 6: Whether to clear the built-in test audio and video will be displayed here. Click OK.

in the seventh step, local music is not displayed, and all files are cleared.