easier control of voice notifications
Somewhat of a 2-in-1:
Generally I like minimal notifications, but when I need full guidance, it would be nice to get to it quickly without having to delve into the menus to switch it.
Also, it would similarly be nice to have a quick way to switch between the "always play through speaker" and allowing it to navigate through the bluetooth, because my listening habits vary. Sometimes I use my bluetooth to listen to music from my phone, and sometimes I use my regular old radio (in which case the Waze notifications all disappear into the abyss).