I've been searching for days and couldn't find a solution, therefore thought to see if someone has faced the same issue. When playing on ipod I noticed that the sound volume wasn't as high as the CD's played in car. (I use the AUX port) therefore I went to: "Settings > Iphone > Sound Check Off" and the volume level was loud and clear. Now I face the same issue when playing streaming content using Pandora or Tuner. I believe it has the sound check on somewhere. Is there a way to disable Sound check for Pandora and other stream apps too.