If you search online about rodents damaging cars, you will quickly encounter a surprising explanation: modern vehicles supposedly use soy-based wiring insulation that attracts mice and rats. Some drivers claim rodents never bothered their vehicles until automakers started using “soy wires.” The theory appears frequently in repair forums and social media discussions whenever someone discovers chewed wiring under the hood. But how much of this claim is actually true? Do modern cars really use soy-based wiring, and is that why rodents chew through electrical harnesses? Like most things you read on the internet, while there are elements of truth, it’s More…