#15 is for the front of the sub trans, it includes the gear (TR) sensor, neutral switch connector, speed sensor connector and the 2 connectors thst hook it to the man harness.
The shift motor connector is made into the main harness. The small sub harness your referring to only contains the 3 oil pressure sensors, and internal solenoid connectors. Im not aware of anyone whose tracked down just the shift motor connector yet. Without it in front of me, i cant remember if it fits other things, besides the Talon.
There is a engine sub harness for the Talon, that i believe has that connector on it. But retail is over $130.
It could be a easily sourced connector, but id have to see one to identify it.