Only had my cobra for about 2 months now. just yesterday, i see my K band goin crazy, but hear nothing. thank god i saw it or i would have been pulled over. my sound doesn't work at all. i tried pressin mute, once twice three times, 324325 times. also, its stuck on highway. no idea whats wrong? anyone? i restarted it several times. no sound. unpluged and pluged in, no sound...hmmmm
