Deaf and Dumb

The audio system in my previous car had a feature where the volume would automatically increase and decrease as the car accelerated or decelerated.  Since I didn't opt for the fancy audio package when I bought this car, I figured I didn't have that feature.  It turns out I was wrong.  When I tried to figure out how to turn down the bass level yesterday afternoon, I stumbled across the way to turn on the automated volume option.  I've had the car for six-and-a-half years and just now figured it out?!

I never did figure out how to turn down the bass.