See in Matt's pic there are 2 pink wires doubled up in B2 cavity? That(I believe) shows that it is for a notchback, as they had the dome lamp. Fast backs did not. They had a "rear pillar" lamp on each side. I found a headlight connector in my tickle trunk that was from 67(yellow/tracer wire) see pic. It does not have doubled up pink wires from B2. Only a single pink....
Interesting and good info. Should have enough to figure out the puzzle soon. Considering the supplement was clearly late relative to the regular FSM, it could have been rushed and missed a detail like that.
The body diagram shows several option (vert, hardtop, fastback, trunk light, rear defrost, and vert top)
Need to see how these pillar light wires connect up to the front.