Hi all - I just recently installed an Ivona TTS voice on my Galaxy SIII android phone (w/ a nice, sexy UK accent!), and have been playing around with it as an alternative to the Prius Nav. Only problem is, I can only hear the voice when audio source is selected as USB/Aux. (I'm connecting via Bluetooth) Only problem with this is, while in this mode I can no longer listen to music. Well, unless it's also streaming from my phone. Is there any way to play that and the radio/XM/CD at the same time?
No, there is no way to mix the audio sources. It can only be done on the device, in your case your phone.