Tweeter buzzing on a 2012 Fiesta

[Simon]

The tweeter on the driver's door keeps making a buzzing noise from time to time. Does not do it all the time. Have replaced the tweeter but the tweeter still buzzes. What else could it be

 

[scotman]

I would be looking for the ground connection. It might be in the footwell close to where the window and mirror power supply is fed into the cabin. The other possibility is that the speaker wire is too close to another wire harness. Do any of the harness leads cross over or run along the same path as the speaker lead? I would be most concerned with finding the ground connection and cleaning it up first.

 

[Simon]

Thanks. will look into it.