Chosen Solution
No audio, when you click play play the line does not advance and no sound
seamike7, here is my answer form a similar question “here is my answer from a very similar question"this particular model has a problem with an IC on the logic board. You can try and see if you get sounds by applying some pressure to the right lower side of the iPod, almost between the click wheel and the bottom corner. Here is a forum that explains that http://discussions.apple.com/thread.jspa… and check for a posting by IPOD_wrecker. If that is happening to you there are only a couple of options. New logic board from about $40 on eBay, reflow your old logic board or you can try what warnergt did on http://forums.macnn.com/103/ipod-iphone-… it is kind of crude but it does seem to work. The reason why it works after you place it in the fridge, is that the contraction of the metal closes the micro crack in the solder joint. " The only other thing you could check is the head phone jack to see if it is stuck. Insert and remove the headphones a couple of times to see if that can get the jack unstuck. Hope this helps, good luck.
Since the line does not advance, it may be a hard drive issue. You might want to replace the hard drive with a memory card, as shown here: iPod 5th Generation (Video) Hard Drive Replacement with a CF or SDHC/SDXC Memory Card The best memory card adapters are sold by iFlash, available here: https://www.iflash.xyz
