I just encountered the no speaker issue today driving to work. Although they were working initially at first, 6 miles into the commute, the left front and rear went out, except for the A pillar. Right side is fine. I've had the car since new 2011 model bought July 2010. Looking through the posts it tends to be moisture/water related. Its going to be 90+ degrees today so will check after work see if the hot weather dries up the issue. Normally it's garage kept but its been out for the last few weeks while on vacation.