I have a Kenwood audio system in my car. It allows you to edit the graphic equalizer. I mostly listen to music but I occasionally listen to the news or a podcast.
Old School Car Audio Kenwood KGC-4042A 5-Band Graphic Baby Equalizer with Subwoofer Crossover - YouTube
How to use your EQ, crossover, time correction, and sound settings on a Kenwood video headunit - YouTube