Plenty of room, but you have to have a VERY long drill bit. Each of those curved pieces have "baffles" in them. They likely drilled access holes and pulled the wires thru. I was lazy and routed along the seams. I figured I'd leave it at that until I started to have contact issues. In some dim hope of a future date, I'll disassemble the rack again and properly route it like they did. You should be happy with their work, it looks fantastic!

 

I got a set from Lucky8, installation went fine. No tape on them already, had to go buy some. And no batteries for the remote, had to get those too, $18.

They are not working however, installation was very simple. Output wiring goes to the lights, input goes to the batter and ground. The remote's red light comes on when clicking it. I received no instructions with it, does the remote and box need to be paired or something? Here are some pics of the wiring, the ground is just below the positive. I used it for the lights and the front grill light bar also. Any ideas as to why they are not working? I did not receive any wiring for the controller to the batter/ground though, had to use left over wire I had from another project.