Rewire

Are all standalones automatically rewire clients or do I have to flick a switch or include something special at build time?

I just want to record the audio output from the DAC~ in my standalone to Garageband. All information suggests that this is simply an automatic function. I notice that when I have a Garageband project up and I start my app, Garageband notifies me that the number of MIDI inputs have changed, but what about the audio inputs?

What do I need to do to make this work?

d.