shouldnt i be able to mix music if i bought the sound card at the pawn shop?
Hello chriscomstock, to solve this issue we might need more informations as serial numbers and so on, so can you please create a support ticket or open a chat support using the link below:
https://bit.ly/NI_support_NA
So our team can help you further to solve that as soon as possible.
I hope this helps☺️
You can download the drivers for the Audio DJ 4 here - https://www.native-instruments.com/en/support/downloads/drivers-other-files
Looks like you're on Windows so the device should work OK with the older drivers.
You can download a trial of Traktor Pro 4 to try it and make sure it works with your system from here - https://www.native-instruments.com/en/products/traktor/dj-software/traktor-pro-4/free-trial/
Audio 4DJ is an audio interface. To use it you don‘t need to register it. It isn‘t supported on Macs anymore since macOS 10.12; effectively it will work on Windows only (or on old Macs). If you want to mix music you need Traktor Pro (or another DJ software). If your device came with a Traktor licence I expect it was Traktor (Scratch) Pro 1 - not sure if you even get this running on Windows these days. You can contact support to transfer the license but honestly that is useful only to get a discount on a Traktor Pro 4 license.