Turbo II FC

I asked about this in the ecu forum about where to hook up the orange wire. I am having some trouble because in the Blitz instructions it says only the fd and 20b ecu pinouts for the speed output. I was curious if you have the power meter, where did you hook it up to? How did you go about wiring up that orange wire that is meant to go to the speed output that fc's dont have in the ecu? I just wanted to ask because some people told me to hook it up to the cruise control but I heard thats pretty difficult so before I do that I thought I would ask if theres a simpler way. Thanks.