iPod will not sync or charge

iPod will not sync or charge

When I plug my iPod into the wall or my computer, nothing happens (I have tried multiple cables.) If I listen very closely to the device, there is a faint high-pitched sound that makes noise for a second or two, then stops. This noise repeats non-stop. I'm not sure where the problem may lie, although I really want to get the data off of it. If I cannot easily repair this, what would be the easiest way to retrieve the data from its hard drive?

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