I have a 1972 Mustang Grandé that I am doing a Mach 1 tribute style upgrades. My problem at this moment is that I lost the only set of keys. I bought replacement locks but I am unable to remove the ignition cylinder. The steering wheel has been removed and I have gained access to the switch but the point at which I'm supposed to push a pin into to release the lock will not work. Is there a secret I should now?