That bare sheild wire should always connect to the sleve of the jack. That is what prevents outside interference signals from leaking into the system. If you look carefully at the jack, you will see which one connects to the sleeve and which connects to the tip.
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)