67 Convertible Top Switch

The 1st link to the schematic, red w/tracer is on the 1st link on the lower right. If you trace it back it connects to black wire that goes to ammeter.

http://www.mymopar.com/downloads/1967/67BarracudaA.jpg

2nd link, you will see bottom left of schematic that red/wtracer goes to fusebox. Hope it helps. BUT no guarantees that Im correct.

http://www.mymopar.com/downloads/1967/67BarracudaB.jpg