3 motor wires are a,b,c. Match it to the a,b,c, on the esc.
I'm assuming the fan goes in b, servo on 1, esc on 2. There should be a positive (+) and a negative (-) on the housing.
More then likely on the esc to reciever, brown is black / negative
Red is red / positive
Yellow is white / signal
You may need a y adapter for both fans, umsure if you need a bec. Do not hook up as is and test, make sure its in a car. Failure to do so can damage the magnets or snap a rotor.
You will need to bing the esc, very simple usually. You will need to bind the radio and reciever before that.