The fact that the power button on the head unit is just a mute button infuriates me. I listen to loud tunes on the way home from work. I hit the "power" button when I get home and then turn off my car. I get in the car in the morning and start it. The radio is no longer muted and is now playing at the power that I was listening to Slayer the night before. I go to panic mode because the volume surprised me and now I can't change the volume for 5~ seconds because of the idiot warning on the screen. Makes me want to take a hammer to it every time it happens. Also, why the **** can't I turn the volume up or down when in reverse? Sometimes the head unit has a delay turning on and waits until I am in reverse to kick on my radio at high volume. Not a big deal but I have traded cars for less.