I am no Mopar expert. I am just looking at some wiring diagrams. Links below. You can look and see if they match your car. If not, everything I told you is crap. You're welcome.
http://www.mymopar.com/downloads/1967/67BarracudaA.jpg
http://www.mymopar.com/downloads/1967/67BarracudaB.jpg
Click on the diagram to enlarge it.