Not sure what year your Fusion is, but I bought my resistor wire harness/connector from amazon and it was 5 wires. I just pulled down the OEM wire harness and cut the wires one by one and reconnected them to the new connector harness one by one.
This is the one that I bought on Amazon. Looks like it's changed a bit, there was only the 5 pin connector on it when I bought it. This fit my 2006 SEL v6 with the automatic climate control.