I've usually pronounced it Kuh-CARE-re-koh. Sometimes I'll say Kah-KARi-koh (With Kari like the digidestined ), or Kah-kah-REE-koh, but they're used more out of fun. I pronounce it the way it looks to me/the way other people pronounce it. In this case, the former pronounciation was both of those things.