Select the required source on the audio unit.
Operate the following functions with the control:
Seek down or previous.
Seek up or next.
Press repeatedly to scroll through available audio sources.
Seek, Next or Previous
Press the seek button to:
Tune the radio to the next or previous stored preset.
Play the next or the previous track.
Press and hold the seek button to:
Tune the radio to the next station up or down the frequency band.
Seek through a track.