I recently purchased a Droid and a 2003 Nissan 350z, I am preparing to replace the stereo system & navigation in the car. My plan is to use my droid in place of the Navigation system, google maps is 100x better than the stock navigation system. I am looking at purchasing a JVC KD-R900 with bluetooth. This unit should connect to my Droid and allow me to make phone calls from it. What I want to know is will Google Maps Navigation act like the current stock navigation system where the audio comes through the car speakers.