You just need to put a resistor from the 5v supply to the signal wire on the factory connector, it takes just a couple minutes. Email me (I dont get on here much) with an address and I can send a resistor, or you can get one at your local radio shack for super cheap. Its weird because only a few trucks have gotten the code and all the trucks that we installed the fan on here at the shop never got it, so I didnt realize it was an issue until I got an email about it.
Thanks
Justin