Take that one step further. As silly as it sounds, this is what my 'factory' Ford Radio does in my Ranger - if it's OVER a certain value when the radio's shutoff, then the next time you restart the car, it's set at 'medium'. However, if it's below 'medium', then the next start-up is at it's last-saved value. It's actually a feature (probably THE ONE feature) that I like about the factory radio.

Me.