I just put a Pioneer AVH-P4400BH in my Jeep. It's great and A2DP streaming works pretty great with Spotify so far. I seem to be able to change tracks with my steering wheel controls which is awesome. However, the display can apparently show track info from some programs with Bluetooth, and I am wondering if this can be done in Spotify.
I believe this is part of the AVRCP 1.3 profile, which my phone supports.. I guess we just need this in Spotify.
Is there a 3rd party app that will do this in the meantime?