It is a straight drop in. There are a couple options you can do.
1 - factory type install where you have just the 3 lights. L & R Footwells, and above glove box.
2 - Add on. Splice the new harness into the old and gain 2 extra LED lights plus the glove box.
3 - Add on. Make a female to double male molex wire Y harness. Where you plug the female into the console harness and the male plugs into the 2 LED harnesses.
Pop out the plastic filler above the glove box, snap in the new light bar. There are 3 long tabs holding the filler piece in. Pull the glove box and you can reach them easily.
The wire harness plugs in the left and right footwell lights and the dash light bar. If you want to route the wire the same as the original then you are going to have to pull the center console.
Then plug in the harness where the old harness is. Passenger side console, behind the side cover. The plug is the middle one.
So to recap, you need:
BE8Z-13E701-A Light bar
BE8Z-14A411-A Wire Harness
I chose to make a y harness so I can use the extra LED for the glove box, plus I can return it to stock if needed.