Chevrolet 2002 Corvette Owner's Manual page 341

The plug has the following three separate wires:
D
The orange wire connects to battery power.
D
The yellow wire connects to ignition power.
(Power is only available when the ignition is in ON.)
D
The black wire connects to ground.
NOTICE:
When using the accessory power plug:
D
DO NOT splice wires directly into the
vehicle electrical wire harness. If done
incorrectly, splicing may cause damage to
your electrical system and would not be
covered by the vehicle's warranty.
D
The maximum load of any electrical
equipment should not exceed 15 amps.
NOTICE: (Continued)
NOTICE: (Continued)
D
Be sure to turn off any electrical equipment
when not in use. Leaving electrical equipment
on for extended periods of time can drain
your battery.
D
DO NOT use this plug if the electrical
equipment requires frequent connecting and
disconnecting. This may cause excessive wear
on the accessory power plug and damage
your electrical system and the damage would
not be covered by your warranty.
Headlamps
The headlamp wiring is protected by a circuit breaker.
An electrical overload will cause the lamps to go on and
off, or in some cases to remain off. If this happens, have
your headlamp wiring checked right away.
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