Nelson efan harness question

I have a nelson efan harness for a 99-02 truck, instead of tapping into the ac wire can i just take that wire to pin 33 on the green plug of my 03 silverado hd? 6.0/4l80e

There is usually a wire in that pin location.
So no.

Quote:

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Originally Posted by farmtruc

There is usually a wire in that pin location.
So no.

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So if there is no wire there will it work?

efans are installed already lol, now i have a dent in my grille...stupid pills...