83 Sub, orange wire w/connector near fuse block

[ColAdo82K5]

Hey
1983 Chevy Suburban C20, pretty good condition overall, and the wiring is not all hacked up.
However, there is a single solid orange wire with a black crazy factory style plug thing that would plug in somewhere in the fuse block into a single blade open spot. You know the kind that you can piggy back onto if need be.
What spot does this go to? What does it control?
I think everything works on the truck, which confuses me more.
Thanks,
Blake

 

[bronc3buster842001]

It will only plug into one certain spot. IIRC it will be in the upper left hand corner.

What part of MO you from.

 

[warwgn]

that goes to your cigarette lighter, and yes it goes in the upper left corner there are two slots it can go to either one.

 

[ColAdo82K5]

Turns out it goes in the lower left hand corner...it's the power to the clock!

BroncBuster,
I'm in the KC/Liberty area.