Reply to Traktor Kontrol S2 - Traktor & Ableton Sync

Hi,

is possible to use this routing with Kontrol S2 without any external audio card ? Because when i use external mode at Traktor routing, my faders and cross just disappear and i cannot use that with Kontrol S2. At this point, i cant imagine how to use any of a controller which can work with Traktor, because on a external mode is faders always gray...How to bypass it ? Any ideas, please ?

Thank u so much !