My 94 mustang gt didn't have the stock wiring go the radiato fan it just has a relay and some wires going to it.its on the low speed right now and I I put it on high speed it melts the wires.
I'm not sure its the stock fan.it was runing fine when I first bought the car then some times it would not turn on so I just bought a new fan motor but I have it on the low speed because the high speed melts the wires.