Late reply, but I just joined.
I have them installed. The cansmart could not be easier or more seamless. You have two options for the front. a pair running off one circuit or a left/right side off of two connections. The advantage of the latter setup is that you can have it turn off the right when left indicator is on and vice versa. The disadvantage is that you can only use two lights and not four. Which doesn't seem to be a downside!!!
I have the factory engine protection and it was very difficult to get the lights to be positioned exactly the same on both sides as the bars are completely different on each side. I used the Denali auxiliary light crash bar mounts. It was just fiddly, but I took my time.
I also removed all of the panels and spent a lot of time making sure the wiring was really clean. This is your choice, but now it is hidden and I never need to see it again.
Overall I am really happy with the products and the final installation.