I have AutoTune 3, and it used iLok, so you should be able to do it like you said with your iLok. If NOT, and yours just does need thar C/R,, REMEMBER to NOT use the Challenge from the window that pops up with a challenge when you launch the plug in,,, BUT RATHER use the challenge that comes up when you go to the "authorization folder" and launch the "authorization" app.. Then it should all work.. But to be honest, I really think it takes an iLok.. What does the manual say ??? Hope This Helps --