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Tsk, tsk, tsk.... Label them before you remove them. Anyway, the best reference is the Assembly Instruction Manual (AIM) for your year car. Gray wires/bulb sockets are for 'general' illumination; black wire(s) are for electrical ground; check wiring diagram for color of wires that go to the other connections and match that up with the AIM diagrams.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.