Reply to how do I connect my vci-100 and audio 2 sound card

I have an Audio 2 and Kontrol X1 that I run to and Exturnal mixer. I just got me a vci-100 and I'm looking to get a better sound card soon but as of now I gotta work with what I got. So my question is. How would I connect it? I'm a bit confused. Rookie digital DJ here. Thanks.