[cuse94]

Incoming calls definitely work this way. The way the Parrot works, when listening to music via the head unit, it mutes the radio and plays the call or the music I am streaming from my Mogul via Bluetooth. I haven't used for navigation, but what makes me think it will definitely work is that when I have WMP shuffle my music, sometimes it takes a minute to randomly select the next song. During this pause sometimes the radio cuts in for a second. So, I would think that it work similiarly for nav, the radio will be heard during the pause in navigation and the Mogul will cut in when directions need to be announced. Make sense? Let me know if you want to discuss more. I have been very happy since getting the Parrot. Sound quality (for music) is great, call quality (on both ends) is also great.