2013 JKU. Bought a few LED strip slights to replace the lights under the dash and add some lighting to the rear seat. I want tie into the light under the dash. There are 4 wires going into the harness. Can someone tell me what is what with the 4 wires? Thanks for the help!

 

I replaced my interior lights with leds I soldered into the existing chip a couple months ago, replacing the crappy amber leds. The light that points towards the front of the footwell is only on when the headlights are on. The one pointing down is the one that comes on with the dome light. It confused me for a bit also.