Originally Posted by Tware
in my case, when I plug in headphones to listen to Slacker or Pandora, Google Music loads too.
I believe there was a bug on the S3/S4 with Google Play Music where it would always load and run even if you never used it. If you don't use it, disable the Google Play Music app. Someone correct me if I'm wrong on this...I may be mis-remembering (common as you get older).