pretty sure its a no, but...
I have an 08, ordinary stereo. I have the bluetooth option, but as far i can tell its only good for making calls. Are there any updates i can do or hacks to fake a phone call so my car with transmit internet radio or mp3s from my phone?

 

Strange that you ask, because, I just wrote a guide just for this.

 

not exactly what i was looking for, hoping to use what i already have. but i'll take it into consideration. Just found a few android apps to try. will report back.

 

Ah. solved my own problem, kinda. There's an app in the android store called "mono bluetooth" free and sends audio to your car stereo as if in a call, but its yucky mono, no full quality stereo option seemingly available. So would work ok for an audio book or podcast maybe, but for music, forget it. So i'll be sticking with the aux in headphone jack method.

 

Another option.
Not new, but I just found it.
HTC Bluetooth Audio Adaptor, works w/ any bluetooth device, charges w/ micro-usb, 5-6 hrs of use or keep it plugged in. All the reviews seem good. $40-$60.