A conductor for an automobile is provided that exhibits the characteristics of slender structure, improved strength and reduced weight. The conductor is configured by compressing a plurality of surrounding wires that surround a central wire. Individual wires of differing materials are combined in various combinations to achieve the slender structure, improved strength and reduced weight. Materials from which individual wires are formed in one embodiment are one of stainless steel, copper or copper alloy. Materials from which individual wires are formed in another embodiment are one of stainless steel, aluminum or aluminum alloy.