Bluetooth Streaming with Album Art and Song Info on Car Stereo Display?

I have a Sprint Galaxy Nexus (not rooted). How can I make it so that when I stream via bluetooth...the album art and song name shows up on my car stereo display? I have a 2012 Prius (in case that makes a difference). Does anybody know if this is possible or when an update will happen to allow this? I can get it work with Pandora and the crappy Entune app (Toyota's app). I really want it to work with Google Music. Thank you in advance.