So, the '07 and newer trucks cruise is controlled through the PCM ? I bought a harness with all the electronics from the "new" body style '07 Silverado, but it did not have the TAC module that others had mounted on the firewall, I went nuts looking for some kind of module that connected the pedal to the PCM........the only one I found was under dash and had 3 connectors running to it........I needed the newer 58x setup because the LS2 I have is set up with the same..........how complicated is it going to be integrating the '07 cruise to my '93's system???