The rear wiring harness now travels along the edges of the trunk tubes.
The left side wiring harness also has the wires that go to the trunk license plate light. There is both a power and a ground that goes to the trunk. Notice how the harness rivets to the under side of the tubes in the trunk. This is the SAME on both the left and the right side.
And then out through a hole in the aluminum side panels. REMEMBER THE GROMMET! This is a picture of the left side of the wiring harness. The left side has a BIGGER grommet than the right side as both the tail lights and the fuel tank sending unit wiring are in the same part of the harness here.
Here is a picture of how the right side harness runs and where it exits the panel to go to the tail lights. Original Cobras run the wiring the same way.