I had a problem with my audio system driving home in my 2012 range sport. static noise was coming out of the radio, when I switched it to cd…same thing. In fact I turned off the radio completely and it was still coming through the speakers, loud and annoying. Any suggestions as to what it is? I have tried turning the car on and off and nothing. I will take it in to the dealership in the am. So many issues with this car, starting to think it wasn't worth the purchase price.