If you are using a standard coaxial cable, then these tend to get damaged alot, the wires get stretched inside, usualy due to wrapping it around to keep the cable tidy when not in use, try "pinching" an inch of cable together so it forms a small U shape in your finger, now try that all the way up the wire while sound should be working
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If you are using a standard coaxial cable, then these tend to get damaged alot, the wires get stretched inside, usualy due to wrapping it around to keep the cable tidy when not in use, try "pinching" an inch of cable together so it forms a small U shape in your finger, now try that all the way up the wire while sound should be working