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It may be the switch on the radio that when it is switched from speakers to headsets, the contacts may be dirty. Pull out the radio and spray some "TV tuner" (potentiometer cleaner) into the contact area. Excersize the switch while it is wet. That may clean up the problem.
It may be the switch on the radio that when it is switched from speakers to headsets, the contacts may be dirty. Pull out the radio and spray some "TV tuner" (potentiometer cleaner) into the contact area. Excersize the switch while it is wet. That may clean up the problem.