Ford GEM module replaced, now the car won't start?

I replaced the GEM Module on my 1998 Ford Expedition because of issues with my wiper, windows, and interior lights (it still cranked). I purchased a GEM module for the same model and year car. I replaced it, connected all of the wires, and now the car will not start. I then thought that it could be an issue with the new GEM module, so I swapped the new with the old GEM module; and the car still will not crank. With the new module the original issues I had now work (wiper, windows, interior lights); now the car won't even turn over. Have any of you experienced this?

It cranked before the replacement but did it start and run? If not still another problem. That has nothing to do with the GEM

Now you'll have to get the system reprogrammed. You can't replace a GEM without programming it to you specific VIN code. Now you've screwed up the anti-theft code.