i am using the 3.8L taurus fan which is different from a 3.0 taurus, the 3.0
does not have enough air flow to cool a 302, needless to say if its from a 3.8
then your ok.
first you need the plug connector for the fan itself as you stated, there are 3
wires (ground) (low speed) and (highspeed)
the low speed is by far not enough volume of air and is truly sensless to even wire up, leave it unhooked..
you can get a 20.00-30.00 kit which comes with a relay, temp sensor,wiring,
and instructions at your local speed shop it is very easy to wire up and the
temp sensor is a probe that slides between your cooling fins..
taurus 3.8l highside fan blows over 2000cfm
low side is about half of that
3.0 taurus fan high side about 1600cfm