There is 2 different Bluetooth connections for you phone on Toyota / Scion vehicles one connection is for multimedia on your phone and the other connection is for the phone itself. Check if both sections are connected. The reason I figured this out, is I use and iPod hooked to the USB connector and it wouldn't let me play the iPod because my phone (Android) had both multimedia and phone connected via Blue Tooth.
CAD-Man
CAD-Man