Clarty

I have a 2015 79 series dualcab and was just installing wiring for a light bar when I pulled the blank switch next to the idle up button to install the switch and found a connector clipped into the back of it. Does anybody know what this connector is for? I was thinking it might be a pre wired connector for driving lights and if it is does anybody know where the other end comes out? Thanks in advance Clarty