1988 Carrera Targa 3.2 G50. This is in bundle of wires between the fuel filler tube and the brake master cylinder in the luggage compartment. Is not connected to anything. I'm not noticing anything not working, so I'm guessing it's there for an option I don't have. One wire is brown and the other is yellow with very thin white stripe. See photos. Anyone have any idea what this for?
