A:AnswerIt works through your Aux cable jack. So if you are streaming music through your phone then you are already set up on aux and yes it will do that. If you are listening to the regular radio then you have to switch to aux then answer the phone then switch back to radio.
A:AnswerI have had no issues with volume. I found that having your phone volume up just shy to max and controlling the level through my radio volume control gave the best sound.