Garageband - Setup MIDI Control in Antares Autotune-Live

I am trying to use my MIDI keyboard as a controller for the Autotune-Live plugin in Garageband. I found this tutorial for how to do it in Cubase:

https://www.youtube.com/watch?v=dVCmwa6Vjt0&t=26s

In Cubase and other expensive DAW:s you have a lot of flexibility when it comes to choose where to output a track. In this case, the output of the MIDI track is to the voice track where the Autotune plugin is active. I can only find how to choose input of a track in Garageband. Can you choose which track to output to in Garageband?