Ok so I want to make a ringtone. I go in GarageBand with a MP3 i cut it down to what i want i upload it to iTunes. Sadly the time sitll says 4:01 and it should be shorter. I change the extentipon to m4r and i try dragging it and it wont work. Can someone teach me in a step to step way. ive looked at all the ways but none work.