By the info provided by
zaks it's a diode, so you could replace it with a wire,
but if there will be any voltage fluctuations in the player's input voltage, you will most likely blow something.
Not to worry about if you only charge via USB though.
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I miss my Meizu M6SL... Currently rocking a Sony Ericsson w595 on Samsung in-ear phones. Does fine, but it's not a chipod...