[Bruce Edwards]

Jim,

Before you spend any money try tapping on the solenoid with the soft end of a screw driver or other item as someone else is holding the key to start. Sounds like a dirty contactor in the solenoid and sometimes a lite tap will clean it off and start the car. If it does it again get a new one. It is very normal to have one go bad and give you a clicking sound. It is not the starter as if the solenoid was working it would only click once. You may want to try taking the battery out of your other car and seeing if it will fire the Cobra.
Just a few more things to try. Good luck and let us know what you find.