Pioneer AVH-X7700BT 7" Flip-Out DVD Receiver with Bluetooth, Siri and Pandora
This unit emits an obnoxious beeping sound when you turn the volume up and down. It comes from the speakers and there is no way to disable it. It's bad enough straight from the unit, but when you add an amplifier it's an absolute no-go. What idiot thought anyone would want to hear a beep in the middle of a song just because you changed the volume a little?