I have the 8.4 screen with the Alpine system. I was listening to FM radio with the volume pretty low, around level 5, when the volume shot through the roof with static, louder than I've ever heard the speakers. Now it sounds like I have no treble to my speakers. When I adjust the treble in audio settings, nothing changes to the sound. Are my speakers blown? The bass still works on all speakers and sounds fine, but I have no highs and maybe very little mids. I have no idea what happened.