[Chevelle-list] Tac question??????

[Craig & Cerena Robertson]

On my 69 Chevelle Tac there is of course a plug that has four wires.  Two I believe are black and the other two are colored I think Orange and red.  One of the black wires is not attached to any thing and the wire is exposed.  Does anyone have any idea where this wire may go?  The only think that I removed from the car was the stereo.   Craig Robertson 69 SS