Ignition switch wires

Does any one know for certain if the wires coming out of the starter switch are color coded? if so what color is the switch that goes to the starter relay? I was planning on putting a momentary closed or toggle switch to prevent starting of the engine by people who do not know of the switch. it looks like all the wires coming out of the key starter are bundled in a black sleeve. also how many volts does the relay draw ie from the key to the starter relay.
thanks in advance