I just purchased a 4x4 Latitude - less than 300 miles on the car. My wife is the primary driver, and I rarely listen to the radio, so I hadn't noticed anything, but my wife points out to me that the front passenger door speaker is fading in and out and buzzing. It sounds like someone blew the speaker. Definitely wasn't us. I'm taking it in tomorrow to see what the dealer says. I was wondering if anyone else has had problems with their speakers (I apologize if this has already been addressed in a different thread, but I did not see it anywhere).