How do I silence the "itunes needs to check for an update to the carrier settings for your iPad" message? I no longer use a cellular connection on my iPad. I am quite content with WiFi.

For this or some other reason, I am getting

itunes needs to check for an update to the carrier settings for your iPad




How do I silence this message?

iOS 9.0.2
To silence this message follow its instructions: 


  Go to the Advanced pane of iTunes preferences and turn on “Check for new software updates automatically”.