The front and back speakers work intermittently. at one point all u would here is crackling no sound. had to pull fuse for radio cause all you would hate is crackling even wen vehicle was shut off. once u opened the door the crackling would start again.I put fuse back in now the back speakers work, nothing comes from front, and now subwoofer is starting to cut out. really annoying driving a vehicle with no radio or one speaker is working or just sub will work