I just got one of those DICE iPod adapters and began installing it (not completely finished running the wire all the way up to the console) and testing. It seems to work okay, I didn't get to mess with it much because I was running short on time but sound was coming thru. I did notice that now my navigation voice is gone. If the radio is on, the volume does lower itself but there is no navigation voice anymore. What happen? Is this common with these DICE setups?