So it's analogous to the wire over my index finger? There's no fusible link in that line.
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Still, when compared to a OEM cable, it looks a little thin. Could be insulation, but the crimped end looks like there's more wire on the factory cable.
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There's only the amount of current going through the wire to energize the relay, but a 10 gauge line compared to one with a 16 gauge fusible link is considerably stouter.