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amplifier - Where do I attach the ground wire from a 3.5mm audio cable? - Electrical Engineering Stack Exchange
2 RCA to 2 RCA ground U spade plug Audio Phono Tonearm Cable with Ground Wire for LP Vinyl Record player signal cable (Length : 0.5m): Amazon.co.uk: Electronics & Photo
Audio jack ground to main earth ground, safe or not? - Electrical Engineering Stack Exchange
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AV:Link 2x RCA Male to 2 x RCA Male Ground
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