When you remove the two screws holding the top of the dash console you will see there is a little hole there that your wires should fit into. Once you remove the console (there may be a 3rd screw in the cubby above the USB port on the right. (screws are T20 torx).
The console pulls right off, just work your way around it and you may then have to unplug the various components to be able to work in the area.
There is a lot of room for loose wires back of the console and you will be able to unplug the power from the back of the cigar lighter. You will then be able to tap into the power and negative wires for that lighter and put back in place.
Here is a thread done by SShadow1974
This should help.