bool: The speaker's cross fade state.

        True if enabled, False otherwise

def cross_fade(self):
        """bool: The speaker's cross fade state.

        True if enabled, False otherwise
        """

        response = self.avTransport.GetCrossfadeMode([
            ('InstanceID', 0),
        ])
        cross_fade_state = response['CrossfadeMode']
        return True if int(cross_fade_state) else False