Due to wind noise when I set the music to a comfortable volume level while moving, it's uncomfortably loud when stopped. This results in my constantly having to adjust the volume while riding, often difficult to to safely when changing speed...
This is further complicated by the unit keeping independent volume levels for each input. For example, I come to a stop light and turn my music down, now my buddy starts talking and the intercom volume is way too loud.
The unit should be monitoring background noise levels through the microphone and adjusting the speaker volume based on the the background noise level.