This is the setup that I've been using just to mix for fun at home with a few viewers on periscope. I've only been using the ambient sound during my streams and would like to go with direct audio on the broadcast and can't figure out how. I'm hoping I may be able to get some help. Thanks!!

Kontrol S5
Novation 2x4
2 Rockit5 monitors

Cables:
RCA to female headphone input
RCA to TRRS jack
USB cables

Traktor 2
Android devices
Laptop with no dedicated audio input (that I'm aware of)

Look forward to any advice. Thanks!