At a loss here at the moment...the blue (12 ga) wire from the fuse box is 12v I assume and turns or sends 12v from the ECM to the fan when engine temp reaches 207. I have an Entropy dual fan set-up with the controller mounted on the radiator support, the directions from Entropy if control is desired using a GM PCM is to connect the green wire (20 ga) to the PCM trigger (green Wie is ground).
So two part question:
1) What to do with the blue 12 ga wire from the fuse box?
2) !s there a trigger wire in the bulkhead somewhere I could connect the green wire from the Entropy controller?

Any help would be greatly appreciated!
Thanks, Mhstone29