2014 Grand Cherokee Overland issue/question. Almost every day, we hear a low volume buzzer/ring sound come out of the drivers door speaker at random times. Yesterday the "aero" light was on in the dash when it happened. Dealer has no clue what it can be. Its not the end of the world, but I am curious to know what it is.? Does anyone have ANY insight ? Thanks in advance. In any event, BEST PURCHASE EVER !!