I have a 1989 Daytona Shelby. Will a system check plug right into where my boost gauge, and message center is? Do I have to get pig tails, or horse around with a bunch of wires and possibly ruin my harness? Lol! I'm a little hesitant if you can't tell! Thanks for the help! Reply please! :thumb: Sorry I accedently put this in the Exterior! Ehh.. it's all the same right? Haha!