ELECTRICAL--Electrical/radio question

I am looking to identify 2 connectors on my rear chassis unit in my 97 Grand marquis with premium sound, but no CD Changer. The first picture is the side and I want to find out what the unused connector is (#1) and what the unused Plug is (#2 and Picture 2)

Thanks
-Todd

I cant see the wire colors.. But if they are :
DG/P
BR/O
R/BK
AND 3 EMPTY SLOTS
THEN IT IS THE SUBWOOFER CONNECTOR FOR A LUX/JBL SYSTEM.
BUT IT LOOKS LIKE A STANDARD LUX HEAD UNIT