Radio head unit started making extremely loud static noise from speakers around 60k miles. Turning radio off does not stop static nor does turning volume down. Radio is still functional but no audio just loud static when car is cranked up and continues until car is turned off. The loud static is harmful to people ears because after a while your ears start to hurt so Iam sure the decimals are too loud for peopleas ear. No warning lights are illuminated on dash for this problem. Independent service center mechanic said radio needed head unit to be replaced due to being faulty. Radio has not been inspected by manufacturer. There was no prior warnings or symptoms before this problem.