My friends headphone jack was only playing out of the right side; same thing had happened to me years ago on my 5th gen which I had to replaced.
Well, first off I did not even think to look up a guide on how to proceed with the operation; blindly diving in under the illusion that the 5th and 6th would be exactly alike.
By Jove was I wrong. Prying the faceplate off was a long struggle riddled with anguish. Upon accomplishing this feat I realized that I had cracked the screen and immediately freaked, jumped on Google and found this site and the guide that enlightened me to the procedure that I would have to take in order to accomplish what I now had in store.
I ordered screen and a few tools that I thought would come in handy sometime in the future; pricey: I see it as an investment. They came in on time and well packaged. Rest of the repair went off with out a hitch, reassembled, charged. Now she will be returned to my friend; singing, so soft, and so sweet; luring her with lovely lullabies for nights to come.
Do not rush in; take the afternoon off, put on the kettle, and be sure and stop to see the intricate, ingenious, engineering within your ipod.
iPod Classic Color Display
Phillips #00 Screwdriver
1.5" Thin Putty Knife