Danny,
I'm new to the forum...it's awesome. I have 2004 Prius and in seach of some "Easter Eggs" for a few annoying audio problems. My dealership gives me the "deer in the headlights" look when I ask questions about the following?

1.
How can I either lower the beep volume on the touch screen or turn the sound off when using the touch screen. I have hearing aids and the sound of the beeps is very annoying.

2.
The audio sound during a phone call via the bluetooth connection sounds muffled most of the time....is there a way to get a clearer sound? Conversations are a struggle. From what I understand, the speaker for bluetooth phone calls comes through speaker in the driver door...is that correct?

I used the search feature to get more info on these questions....perhaps I need direction on the key search words.