Mopar1973Man Cummins High Idle Switch install Parts supplied:   Switch x 1   Switch Harness x 1   Switch Face Sticker x 2 Tools Needed: Drill + 3/8” bit Cleaning Wipe Pliers Small Flathead Installing: First unplug the batteries to prevent any shorting while installing. The Mopar1973Man High Idle Switch can be mounted anywhere that the harness will reach. The Harness is a total of 10’ long. 4 feet of the harness is re