Mystery wire in headlight harness

jcmeyer5 said
@1969383S This is why I go through the wiring in all my old cars. Well... all 3 of them so far.

I got under the dash last night to do my rewiring (moved the horn to the headlight harness, moved the starter trigger wire to the engine harness), and I found this little guy:
View attachment 1715547253

Turns out (after much research and a trip to see our brothers over on B-body, who had the answer), these are the reverse light wires for the 4 speed (mine was white and black, not purple and white). Evidently you are to take them out of that plastic housing and slip them into the bulkhead connector. So I did... and they LIKED it!

If that is a 68 fish harness as it appears to be, then it Is the back-up lamp To console switch connector and or column connector for an automatic trans. It should come from slot D and C of the bulkhead connector.

The note on the drawing also denotes manual reverse Connection, so in 68 it did both and travels on to the the body connector slot 6 to the rear harness. It also jumps over to slot 7 on the rear body connector which is not as clearly shown in the manual As it should be but feeds the reverse dash light from slot 7 Dash side.