The Geotab HRN-BS16S4 harness allows you to adjust the location of your GO device for your convenience. This straight harness can be used in any vehicle with a standard OBD II port and is required in vehicles where the ALDL prevents the GO device from properly connecting or is in the way of the driver. Simply plug the HRN-BS16S4 harness into your OBD II port and GO device and move your device within the reach of the one-meter harness and out of your driver's way.