I had this installed at best buy so before making appointment to have them check I wanted to try here. I can hear my voicemails over the speakers, but if I try to make a call I have to remove lightning cable to hear or to talk. I can see the lines moving when Siri talks and if I say "call Kevin". A list of Kevin's comes up, so it can definitely hear me. When I use maps for navigation, the volume lowers on my music but I can hear no spoken instructions. I have a 2012 Jeep Wrangler if this helps. Thanks!!