Jumper Wire is a short pcs of wire with clips on each end and we could connect one end to a secret spot under dash and other end to other secret spot on the old Sterling trucks and then you could get out and run the speed limit or a little better !!! Can't do it with new ones YET , but saying they are working on a laptop download ,that you can just plug onto truck & make it run the speed limit ! Amazing what Driver's can come up with !!, But still bottom line if they want there freight to move turn the trucks up to the speed limit !!! DUH , or let there freight set in trap trailer's like they do now !!