I have a reputable stereo tuner that has settings for different amp settings and a loudness mode. Issue is my speakers sound blown....sometimes. Sound is fine at first but then begins to crackle even at low volume. Is this little Kenwood in the car overheating or is there a setting that shouldn't be set? I just bought the car. I may just be crazy but I don't think so. At least the voices say I'm not. ✌