I am not using the Stock Ford Guages in my car, They went bad and i am not longer using the stock engine harness either so that eliminates some of the functionality of the stock cluster as well. I built my own cluster to use. When it comes to electronics i am pretty much retarded which is why i love my 68 stang. Since i not going to use the wiring, 1 will its cause problems with the rest of the car since the harness is no longer plugged in and 2, can i ditch it?