OK, the spade connector is a black wire with a white stripe. There are only three wires in this harness, covered with that hard black plastic conduit for lack of a better word.This unidentified spade connector exits the loom near the front of the engine,leaving the positive cable and one solenoid wire going to the starter. On the other wire I questioned, it enters the engine bay from the firewall right behind the cruise control. Large loom coming through the firewall and this mystery wire splits off alone right at the firewall. Four wires laid flat, joined in to a single flat connector. Looks as though it was routed near heat due to the wrap being shriveled. These wires are white with black stripe, white with blue stripe, white with green stripe, and a brown with I think green spots on it.
Wish I could find another 91 locally to look at but pretty uncommon in this area. Thanks