I didn't see the connector specified, but the pin-outs may be similar to the PLS-226 (dual output with plugs vice PLS-228 with a single attached cable) that Tequila traced out.
https://www.diyaudio.com/community/threads/pls-226-schematic.98864/
https://www.diyaudio.com/community/threads/pls-226-schematic.98864/
I have disassociated myself from this thread, as I nave run out of any useful suggestions - good luck - ...
It's always possible to at least try and plug in the connector in the wrong orientation, even at the expense of bending pins. The military learned this the hard way...