Gauge cluster lights group connection photo?
 

My gauge cluster lights are not working on my 1983 SC and I was told that there is a point where all the wires come together and if that comes unplugged then they wont work. Does anyone have a picture of this connection or have a description of where it is located behind the dash, such as, behind the clock to the right or the oil gauge to the left...etc?

Thank you

They plug in at the headlight switch. Put an in line fuse on the circuit while you're at it.

There is also an in line plug for them all. It is where the white/green wire to the speedo green light, and the 2 black wires to the clock, exit the bundle of wires on the branch of the dash harness to the gauges.

And its an inline fuse? Do you know which gauge I should pop out to try to find it?

It is just a male and female plug. Not a fuse.
See pic of what your lighting harness looks like. All the wires run to it.
Likely behind the oil pressure gauge. It is the first branch that comes off of the dash harness after the 6 pin plug with the yellow wire coming off of it, looking at it from the trunk side. To the left as installed in the car

http://forums.pelicanparts.com/uploa...1588036232.jpg

Here is the best picture I have on hand showing where they all connect.
Circled in red. (Under the white/green wire)

http://forums.pelicanparts.com/uploa...1588039098.jpg

I think mine may have been modified somehow. I pulled out my oil gauge and the plug for the light looks different, in fact, the bulb looks different too

You may have pulled the gauge lamp for oil pressure or whatever.
The illumination lamps in the photo are what you originally had.
Post a photo of what you are looking at.