So im gonna be installing a digital tach with a shift light and I wanted to see who has done these and the easiest way to do it. The instructions say to hook it up to a 12v switched source, ground it , and hook it up to the tach terminal on the ECU this is the part im confused about if anyone could offer up some tips or ideas that would help me out that would be greatly appreciated.
Here is the link to the product. http://www.glowshiftdirect.com/index...ROD&ProdID=298