I’ve seen many posts with the same problem with their speakers having this popping sound either when the radio is on or off. However, everyone seem to have the Bose equipment, which I don’t. I looked already under the seats and there is no amp and no Bose equipment. Also, when the radio is on the popping sounds get crazy the the audio goes away. Most of the time I turn the radio on and I get no audio, with random popping noises. Any idea how can I fix this??