Looking for pin def's - Freightliner Brake wiring connector

[alkillion]

Literature says all Freightliner chassis after 2002 are wired for toad brake controllers. I finally found the connector stuck deep in the structural metal above the steering wheel. Now I need to install my US Gear Unified Brake Controller.
The connector seems to have 6 pins, my Unified has 4.

Does anyone have the pin definitions for the Freightliner connector wiring?

Has anyone installed the Unified controller in a late model Freightliner chassis?

Would like to hear others experiences.
Thanks

[Old-Biscuit]

Freightliner Chassis Info........LINK

Manual.......LINK