squirrel chewed up the wires in my engine

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A squirrel chewed up most of the small wires in my engine, spark plug wires ac wires hood light insulation in hood etc. The lights dont turn on in the interior, the headlights don't work on auto, onlt on regular, and who knows what other wires she chewed. The car was shimming badly and check engine light came on. When I opened the hood I found the damage.