Go get yourself a wiring diagram for the car. The pigtails are in the harness that runs through the firewall between the steering column and the radio. Dont' remember what color, etc. There is a connection there that breaks the ignition signal to the starter solenoid.
Steve Leslie, 65 coupe in restoration. 302, toploader, A/C, disc brakes, bench seat
http://albums.photopoint.com/j/View?u=1571478&a=12409371&p=45488890.jpg
Steve Leslie, 65 coupe in restoration. 302, toploader, A/C, disc brakes, bench seat
http://albums.photopoint.com/j/View?u=1571478&a=12409371&p=45488890.jpg