They are both always ON.
If you have a 97-03 look above and to the left of the BCM and you will find three wires. Black, Yellow and Orange If they have never been messed with, they will be terminated in silver or black tape.
The wires are aux power wires. They are fused to 20 amps. One is SWITCHED power, one is ALWAYS powered and one is GROUND.
You can power what ever you want from there.
The wire pig tail is about six inches long and can be disconnected from a plug at the end of the wires