Hello everyone I need help figuring out the yamaha MG124CX. So basically my Uni has a dj room and it has a microphone that I can connect into it (but not in to my macbook) and rca cable to aux. The mixer recognizes audio from the mic, and I can hear it on the speakers. Reading manuals and online, I connected the rca cable in to rec out and aux in to my laptop, but it doesn't recognize any device. I can use this cable to play music from my laptop tho. I'm wondering what I'm missing, maybe some button on the mixer or something. Thanks for reading.