The ignition barrel locks in with a depress preloaded metal tab. With the steering wheel off and indicator switch removed you will see a slot that a flat blade screwdriver can be placed to depress the metal retaining tab. If the tab is not in place correctly the barrel will float about in the hole. From memory the key position should be in accessories position to be able to depress correctly and then whilst depressed turn the key to start and remove in a pulling/twisting motion.