I'm trying to repair my Sony MDR-7506 headphones (the connector was shot. I'm now using a Neutrik NP3C). There's a coating on the wires. If I try to burn it off it makes the wire kind of brittle and doesn't feel quite "right." I repaired them but they cut in and out. I also trying sanding them, but they don't seem to work quite right they cut in and out intermittently. Is there a better way to do this?
Thanks in advance for any guidance.