I just disdiscovered that you can adjust the EQ while talking on the phone. There was a weird kind of rattling noise while talking on the phone so I thought I'd check to see if I could EQ you out that sound, I presses the EQ button and you can adjust the EQ and turn on or off Dolby surround. I have the ultra high fidelity sound package. I thought others might find it helpful while talking on the phone. I'm totally not posting this while driving with autopilot on.