Bluetooth car audio with track data I have a Droid 3 and a 2012 Toyota Camry which offers bluetooth support. Currently I find the only app that will display track information on the screen of the Camry's stereo is the default Android music player. Winamp and others don't seem able to do this.

Is this a limitation of Android? Or are there other apps that I do not know about that have the ability to transfer track information to the car stereo?
The feature uses Bluetooth AVRCP, the Audio Video Remote Control Profile. It's used for controlling the app from the receiver (e.g. play/pause buttons on a BT headset).

AVRCP level 1.3 is possible since ICS and improved in Jelly Bean; it allows all of 1.0 (play, pause, next,...) plus metadata information on the track itself (artist, track name, etc.). It was also backported into CyanogenMod7.2 (Gingerbread).

Players themselves have to support AVRCP 1.3 too, I guess.

Apollo might also support this. Or just search for AVRCP 1.3 in the store.