if you can do it without cutting and soldering, thats great! thats the way i would have done if I could. Not sure what would be different though. the harness your holding in your hand in the pictures, on mine, it went in a complete loop through the inside of the cab under the dash, and all the forward to the headlights and tucked up under the core support just above the radiator. i've only done one truck. maybe it was just the one I did was some kind of a screw ball deal. not sure.