iPod Classic 160 GB purchased new Aug 2013 wont show in iTunes

I purchased a new iPod Classic 160 GB in August 2013 and it (the iPod Classic device) would not show in iTunes though it did show in the Apple Finder. I tried EVERYTHING numerous times including resetting the iPod, updating iTunes and trying everything in the book and in on-line tips. Nothing worked and I was about to give up when I tried using the Apple iPod Classic cable that actually came in the iPod Classic box. It worked!!! Conclusion? Dont just use any old Apple cable eg. from a iPhone or whatever; TRY the USB cable that came with your iPod Classic!!!😎 I have 2009 iMac with the latest Mac OS BTW.