car doesnt crank on 1999 Ford Mustang

can i bypass ignition switch on this car .years ago you were able to jump out starter by putting a screw driver between post on starter . is this still possible or is there another way.

2 answers
YES THATS POSSIBLE OR YOU CAN WIRE IN A STARTER BUTTON AND INSTALL IN DASH PERMENTLY. WIRE FROM BATTERY TO SWITCH AND SWITCH TO SMALL WIRE ON STARTER SOLENOID
How have you come to the conclusion that it's the ignition switch?