I recently installed the jumper wire in my relay fuse box(under hood). It allows the fog lights to be on when your bright lights are on. It worked fine around town when driving regular. But when I got on the highway and kicked it down to pass a rig it downshifted and fell flat on her face. Then it revved up but didn't gain any speed. :hair: It didn't show any problems when driving at normal highway speed. The only thing that I could think of that I had done to the truck was the jumper wire. I pulled over, pulled it out, got back on the highway, and tried it. The truck was back to normal; all my HEMI power was back. So I just wanted to warn anyone who has done this to be aware of this possible problem. It could be a BIG potential safety problem. I'm just glad my wife and son weren't with me at the time. Keep safe and good luck.