So I have a minor problem with the stereo in my work truck (Sony Xplod MEX-BT2700). It pairs with handsfree and A2DP profiles just fine, but only plays audio through the handsfree profile. If I have to choose between the two, I'd much rather have A2DP instead. Is there a .conf file I can edit to change the stereo's profile to remove the handsfree features, and if so, will that make it work the way I want?

All my other bluetooth devices (headphones, wireless headphones and a speaker) all work properly, so I'd like to get it working if possible.