Yeah I'd recommend buying a new or a different wiring harness. These trucks seem so finicky with faulty wiring. Even the smallest little abrasion on the wire coating seems to make a difference. I know the IPR and the VGT share the same pigtail, the P/N is 6E7Z-12A690-DA so you can buy just the pigtail and attach it. I believe ICP pigtail is 5C3Z-12224-A