Hi mate ok hard wire the receiver to the KK using male to male servo leads , make sure you plug them in to the right pins for the channels and the right way round , once this is done fire up the KK and transmitter go into the monitor screen of the KK now all channels should be zero any that are not your need to use sub trim in the transmitter to zero them ( aux channel will never be zero so leave this one as its just a switch channel) once all is zero move the sticks and check travel , so up is up , down is down etc , if any are wrong reverse that channel in the tx via a PC , once this is done you can now plug in the ESCs
get this far and come back and we can tell you how to finish set up
PS the KK will have hobby king firmware your better off getting the flash lead to re-flash the kk with Steveis1.8s1 pro the self level mode is super stable and the quad will fly much nicer on this firmware