If you were to wire a 4 pin audio cable to a 3 pin jack which two wires would be joined? Eg. TP120 jack being replaced with a 3.5mm jack. - Quora
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10pcs 3.5mm Female Audio Connector 4 Pin Smt Smd Headphone Jack Socket Pj-320d - Integrated Circuits - AliExpress
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10pcs 3.5mm Female Audio Connector 4 Pin Dip Headphone Jack Socket Pj-320a - Integrated Circuits - AliExpress
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