My 1970 Z28/RS is equpped with the ZJ9, Auxillary Lighting Group Option. My Question is: What`s the correct color of the power supply wire that goes from the Horn Relay to the Underhood Lamp? Is the wire color the same from the Underhood Lamp to the Connector as from the Connector to the Horn Relay? I`m not sure if Black or Orange is correct. Thanks in advance.