I download songs to my phone to play in my car via USB. When I plug my phone in, I get bits and pieces of navigation directions between songs. Rather annoying constantly fwding through these. How do I stop this? I have the Droid4 w/ an sd card inserted from my old phone. I don't know if its old navigation audio from my old phone on the sd card or if its coming from this phone. When I search my sd card files.. there's nothing there but my music? Help!