recording out with USB on the DJM750MK2

Hi

I'm losing my mind.
I can't get sound from my mixer into Garageband.

I have updated mixer firmware. I have downloaded the mac driver. I updated my Mac OS. i downloaded the desktop software. 

I don't see any input option aside from microphone in Garageband or sound input option in my mac sound settings (aside from Microphone). So my mac can't find the DJM750 device?

The only sign that something is working is that when I plug in or unplug the USB cable from the mac I get a (Garage Band) pop up saying Midi device added to inputs or Midi device removed from inputs.

I have restarted everything multiple times.

Any help?... please