Good Afternoon All,

This is the radio wiring diagram and speaker size for:

1984 Oldsmobile Cutlass Supreme

Car Radio Constant 12V+ Wire: Orange
Car Radio Ignition Switched 12V+ Wire: Yellow
Car Radio Ground Wire: Black
Car Stereo Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amplifier Trigger Wire: N/A
Front Speakers Size: 3 1/2″
Front Speakers Location: Dash
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Rear Speakers Size: 4x10″
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

 

Good info to know.
However, there were unrelated amazonn ad links in your post that had to be removed.
Not sure how they got there, but were not supposed to be there..................