Accessory switches

I have an 07 trd 4x4 quad cab, and on my accesory panel i have 2 plain but one has wires going into the back of it. Does anyone know what these wires run to? My other ones are fogs, RSCA, then the empty ones which one i put in a switch for PIAA lights but when i popped the other out is has a cap that fits into the black filler clip with about 5 wires going into it?

 

i have the same thing ??

 

It's probably for an option that was not included in your truck...VSC, a locker, something else like that.

Car companies run the wiring for all the possible options while the frame and body are bare bones...then only add the relays and final parts (switches and servos, etc etc) to the trucks that require them based on the final package of the truck.

Use that blank for whatever you want.