After inspecting the wires, we rewrapped the damaged loom with a quality electrical tape, and then wrapped that with a self-vulcanizing rubber tape. This will not only protect the wires, but waterproof them. Split-braided sleeving is also a great way to protect the harness, which we will use over the rubber tape, making our harness bombproof. There are many ways to repair and re-cover wiring, but sometimes the large factory end plugs won't allow coverings like heat shrink-wrap to slide over them. Wrappings and split coverings are best.