How come I can't hear audio from iPad when connecting to iConnectMIDI4+?

When connecting the iConnectMIDI4+ to my iPad, I can't hear the audio through the iPad speakers or headphone jack.

By default when connecting an iOS device to the iConnectMIDI4+, it will enable the iOS’s digital audio to pass through the iOS device's dock connector and disables that iOS device's internal speakers/headphone jack. To change this, so that audio will sound through the iOS device's headphone jack/speakers: In iConfig, under the Audio Info section, de-select "iOS " for the iCM4 USB Device Jack that iOS Device is connected to and then perform a "Commit & Reset".