Maybe you can edumacate me a little bit. On the factory book it shows the orange and black wire on the firewall disconnect panel going to the blower motor. But on a different wire diagram that says for ac option it has a thicker purple wire coming from a relay box. On The upper left going to the blower motor. But if that is correct which i think probably is, what do I do about the orange and black wire? Just cap it? Let me know if pictures would help. Thanks