Harold McElraft was the original owner of my D, so I'm pretty sure I have this AC mod. :-) It will NOT work with the Fanzilla since the wiring in the relay sockets has been rerouted. I know this because I tried to install a Fanzilla, not knowing that my wiring was modified. In my D, the cooling fans come on when A/C is selected on the dash regardless of the compressor; I initially thought all Deloreans did this. The wiring mod is cheap (free?) and it works. The Fanzilla is easier to install, stages the fans on and off, and allows you to return to stock easily, but costs money. Either is a vast improvement over the stock configuration. Gus Schlachter Austin, TX VIN 4695 Mark Noeltner wrote: > Does the Fanzilla affect the fan vs. AC cycling? Or would this still be a > good modification to do even if you have a Fanzilla installed?