Hi, I'm new to this web site. I was refered to this site by some guys at the Avalanvhe fan club site. I want to put a 2005 e-fan on my 2004 Analanche. I have a brand new fan for a 2005 avalanche, A Nelson Harness and a 250 amp alternator. You might think the alternator altinator is over kill but I also have a big sound system with 3 amps that draw alot of power. Any way, I have never done this conversion before. Nelson's said if I pull my PCM and send it to them thay could program it. But I would rather not do that. I would like to keep it hooked up on the truck to avoid any problems with the PCM having to relearn when I put it back in. Where can I go localy to get this done? A dealer? Will they know what I'm talking about? I live in the Fort Worth Texas area. Is this a hard conversion? I have some skills but like I said I have never done this one before. Any help at all would be greatly appreceated. Thanks