Here's a weird one, sometimes I'll plug my iPhone 5s into my radio via it's USB input, it'll work fine for about five minutes then all of a sudden the music stops and the radio displays a "read failed" error on the screen while my iPhone does nothing out of the ordinary. However the only way I can get the two playing nice again is if I turn the phone off and back on. Usually after that they'll work in harmony for a week or so before it does it again... Any insight into this? The radio is a few years old but it has full iphone/ipod control support via usb (though its rated to work with up to the iphone 4). Is this just a bug somewhere in iOS?