Fixed...

I covered a blindspot and managed to fix something that's been bugging me for the past couple of weeks.

The blindspot was that I didn't know where the fuse box was in the car.  The fix was the ipod system in the car which was getting confused and locked in a loop and basically, wouldn't play.

Found the fuse that controls the music system, take it out to pull the plug to the system.  Plug it back in and the full thing has reset.  Didn't even need any code type thing that I suspected might have happened.