RIGHT REAR SPEAKER INTERNAL AMPLIFIER HAS A HIGH OCCURANCE OF FAILURE WHERE SPEAKER ASSEMBLY CATCHES FIRE UNEXPECTEDLY, FILLING PASSENGER COMPARTMENT WITH TOXIC SMOKE AND POSSIBLY RESULTING IN LOSS OF CONTROL OF THE VEHICLE DUE TO SMOKE; FIRE HAS SPREAD INSIDE TRUNK AND PASSENGER COMPARTMENT IN SOME CASES. AUDI OF AMERICA HAS "RESEARCHED INTERNALLY" THE PROBLEM AND FOUND NOTHING; I KNOW OF SEVERAL VEHICLES WITH THESE PROBLEMS AND I AM COLLECTING MORE INFORMATION FROM OWNERS.