Auto-Adjust the volume so that it appears at the same volume level when selecting different audio sources.
On my Model S, I find often that switching between Bluetooth (phone), cell calls, FM radio, or XM radio that the volume varies dramatically. Sometimes when I get in the vehicle the radio volume is too loud. Often when switching to a phone call I need to raise the volume to hear. With tech today why can’t the amp balance the volume between inputs?
Moderator: This has been a long-time problem for cars and receivers in general. No one has figured a way to solve it automatically. Some high-end receivers have manual level adjust for each input which helps, but these are hard to get set right, and I suspect few owners even know these adjustments exist.