2020 jeep JL wrangler unlimited sport door curiosity lights

Look around on the door jam for a switch that energizes the courtesy lights. Not sure what you are calling a "curiosity light" but one side of the switch I described should be hot. Splice into that wire ith the red lead BEFORE it goes to the switch and connect the other side to ground (black). When do you want the light you are putting i to power up? If you want it to be on when a door is opened, you are done. If you want something else, then you will need to find a powered lead from the circuit you want and splice into that instead of the door light switch.