Or, you can just toss them and pick up some new Monoprice RCA cables instead...
Despite the introduction of more advanced audio and video signal cables, such as HDMI and Toslink, most audio and a large number of video connections still use the common RCA connector.This is a premi
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Make sure you test the cables you purchased before putting them in place. You have no idea how used cables were treated over the years, so double check that they work.
Companies like the one you purchased from have largely gone out of business because they mainly sold snake-oil products at ridiculous prices.