Ann grear reported: I established it to normal speed then maintain the o.k. button down with a match & black tape This provides you a digital speedo Ford will not like it but they won't support Click on to grow... 13razorbackfan explained: Also, I just did it a minute ago, https://buy5meodmtonline61494.bloggazzo.com/31190754/about-2018-ford-mustang-digital-dash