I have a 2010 Honda Fit, and for me it's even worse than that: the stereo will not let you not play music when an iPhone is connected. If you pause it, the car immediately resumes.

So you can't charge your phone in peace or use the car stereo for turn-by-turn navigation or anything else without also playing some music in the background.

It's absurdly frustrating, and I've joked with my wife about sticking a long silent track on her iPhone more than once. (I have an Android that the car just refuses to connect to at all.) I'm going to send her this article.