What I hate about my new Toyota's volume knob is that there is no indication of volume level in the UI, and the knob itself doesn't ratchet. So I have absolutely no feedback about how much louder or quieter it's going to get when I turn the knob. If I have no music going, but I'm waiting to hear the next GPS instructions, how can I make sure I'm going to hear them? If I'm not sure where the volume is at right now, I can't, unless I turn it and then try and trigger some sound effect or something. It's needlessly complicated.