I have been having a problem with anything I plug into my headphone jack. Be it headphones or auxiliary cable to my car or boat stereo. Problem happens with blue tooth on or off. When I plug into jack the volume starts counting down to 0. Then I can't turn volume back up until I unplug headphone jack. Doesn't happen every time but quite a bit. Also doesn't necessarily happen immediately. Very frustrating when your 2-3 songs in and it happens. Other times I will get a speak prompt when plugging in. Anyone else have this issue? And does it sound hardware or software related?