First, though, let me ask a question. When one turns the volume control down on a stereo, what are you communicating to the system? I think a reasonable answer is "I want things to be quieter." But according to Toyota engineering, that's a wrong answer.
You see, some genius over at Toyota reasoned, when the operator turns the volume control progressively lower, to the point one can just barely hear the music (whisper level), the stereo should make a loud beep through the speakers to indicate that the system is quiet.
I must repeat that. The stereo beeps loudly to indicate you have reached minimum volume.
Why? Obviously because because you might not otherwise realize that the music is very quiet by simply not hearing any music while rotating the volume control. And it's well known that the universal sign for "I'm quiet" is a loud beep, like shouting "I AM VERY QUIET NOW!!" which is what everyone does, right? This is especially desirable when you have a sleeping baby in the car. Because sleeping babies love loud beeps.
The beep could not be disabled.
I still cannot fathom what they were thinking.