I'm not a radio expert but will try my best. I know that disconnecting power for 10 minutes resets most. Also, there is a self test we can perform.
If disconnecting for 10 doesn't help, go through this self test to see if we can identify the issue.
Turn the Audio Front Control Module (ACM) on.
Operate the audio system in radio tuner (AM/FM) mode.
Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins.
The display indicates each speaker as it is tested.
NOTE: If the speaker walk test is the only test required, this procedure can be stopped after step 3 by turning the ACM off.
Before the speaker walk test is complete, carry out any of the following actions: Try this and let me know if it helps or what you find.
Thursday, April 15th, 2021 AT 1:43 PM