Sounds like you have it right.
Connect the (OSS) DG/WH + to the (ABS) Connector YE/RD +
Connect the (OSS) GY/RD- to the (ABS) Connector YE/BK -
You hook the two wires on the harness that go to the speedo sensor on the tranny to the two wires on the ABS sensor. Mine works fine, but I am not sure of the ABS method works with a functional ABS system.