Kontrol s4 and mic input

Kontrol s4 and mic input

With the use of a traktor kontrol s4 and 2 turntables is it possible to switch to the mic input if I switch to internal mode on the kontrol s4?

I think plugging a microphone in will automatically disable the D input RCAs.

makar1 is right on that. tried that. instant cut off on channel D