Help with AVIC-N1 install

I've got a Pioneer avic-n1 that I took out of my old truck (01 GMC Sierra LT) and have put into my 02 Suburban. My problem is I forgot what color wire in the cruise control harness I have to tap into for the speed signal.. I know someone knows this. All help is appreciated.-Chris

speed sense wire is dark green w/white trace located in the engine control module