I'm about to do this on my 98 v6. I have to splice into the harness because the wiring isn't there for me to use. I know on some stangs ford left the six's with the wiring ready to go so you may have lucked out.
1998 Bright Atlantic Cobra - 3:73's, BBK ls, Pro 5.0, 96 Cobra STB, Borla XR-1 Catback, Custom Catch Can, Spec clutch, MM Firewall adj, FRPP wires, RSD, Spoiler delete, 245/275 BF Goodrich g sports on chrome 95 cobra r's
1998 V6 Mustang : SOLD!