I've had a Boss Audio head unit (#611UAB) DIGITAL Media AM/FM Receiver in my Honda Civic for the past year running fine.
Recently while playing an MP3 file from a flash drive, suddenly the unit started SQUEALING VERY LOUD!
All the buttons on the head unit were useless, shutting off the ignition switch did nothing, pulling the fuse for the car stereo out of the dashboard did nothing! I had to disconnect the battery ground lead to get the noise to stop! After reconnecting the battery the stereo runs normally again.
Anyone ever had any kind of similar difficulty with Boss Audio head units?