Mystery wire identity?

I just pushed the grommet through the firewall with 14401 harness leads for the gauge feed, shifter lead, wiper lead, and AC lead. There is another female bullet with a “whitish” wire that is part of the harness. What is it for? I cannot find it on the wiring diagram. 1969 XR7 hardtop with AC, PW.

PRNDL lamp lead?

I thought the four prong was the only lead to the shifter. Just looked in the shifter box and there it is! Thank you. Again.