How to rewire radiator fans???

[98FWDSM]

ok, I just got a Fluidyne radiator and 2 slim line fans. The stock fans have 4 wires and my new fans only have 2, a positive and negative. Now i know that the stock fans have different wires for low and high speed but I dont know which wires are which????? I basically guessed and I have it all installed now and if I turn the A/C on then BOTH fans come on, and when I turn it off they both go off, when the car reaches a certain temperature BOTH fans turn on and then they will both turn off.....I honestly see no problem with having them both on, I really think that it would help to cool it down a little bit better. So, is this ok for me to do like this or do I need to rewire it or what?

Thanks

 

[yoshimitsuspeed]

I don't see why that would be a problem.
I would probably leave it.

 

[Diceman19]

agreed, i would say that is probly better in all areas, except fan wear. ;-)