I went through similar when my dog chewed through the mic cord on my almost brand new Lowrance Link8. They offered me the cheap replacement deal at about 75% I think but no chance of replacing mic cord. I then looked at replacing the cord through an aftermarket supplier but would have been about $200. I tried repairing the cord but it looked crap and failed soon after. I bought a Link5 for about $230 or something. Nobody fixes stuff anymore.
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