Out of curiosity, could you pass this message along to whoever maintains the correct section of code?
When listening to music over bluetooth (my car stereo, not bluetooth headphones), I have to max out the volume every time or it is too quiet and the stereo has to be cranked instead. Defaulting to 80% volume (most every Android I have touched does this), then bitching about hearing loss when I try to turn up the volume makes no sense unless someone is using plugged in headphones. If it would default to 100% when using internal speakers and bluetooth devices named "Car Media", or stop with the stupid popup about hearing damage, it would be a really good thing.
Also, do you have any idea how to get Google Play Music to randomize through songs rather than repeating the same song over and over and over? It is silly that when my phone connects to my car, it autostarts Play Music, which then always plays the same song, on repeat. I have to pick up my phone, unlock it, start Pandora, relock, and put the phone down. This happens every time I get in my car, and often it is annoying enough to get the phone out of my pocket, I get out of the car to do so.
Some of the behaviors of Google's software just seem rather silly, they don't match actual usage. For instance, a couple updates ago, in Navigation, you would start the app, click navigate to, select destination and off you go, the two most recent version instead require somewhere around 10 clicks, and 5 minutes to get it to start navigating. As this is an application I am sure many people use when driving, adding additional steps to start navigation is just asking for someone to get in an accident (not everyone pulls over to restart the GPS when it crashes mid trip, though I do).
Just some pet peeves, overall I love Android and am on my 4th phone. I bought both my kids Android phones, and they are both on their second phones. This isn't an overall criticism of Android, but little details that bug me every single day.