Are you overcompensating for something?
To daisy-chain fans, all you need to do is to make sure 12v always goes to 12v and ground always goes to ground. Ground is always black. 12v on a power supply is the yellow wire, but most fans use a red wire. Just don't confuse it with the red wires on a PSU, which is 5v. Won't damage anything, but your fans will spin awfully slow if at all.
You can wire your fans together yourself (strip wires, solder together and shrink wrap) or buy splitters of one kind
or another kind
depending on what you need to plug it in to.
Alternately buy a specialized fan bus
to hook up a bunch at a time.