well, 3rd time in less than a year I get to spend time chasing down wire problems on my Tundra and fixing what they chewed up. I don't know what else I can do. I tried the peppermint spray, but maybe not often enough? More than likely I will have to pull the upper intake off and fix what they chewed under there. Dash looks like a Xmas tree with all the lights on. Last time it was the knock sensor wires, the time before that it was a headlight relay wire. This soy based wire insulation is the dumbest idea yet