Spent about an hour this morning putting back on my side steps (wife was complaining of the difficulty getting into the truck easily without them) and installed the new trimmed lower air deflector (HUGE thanks to @Mikeb52r for coming over yesterday and being a dremel ninja).
I'm a bit confused, as my dealer is telling me I just need the mirrors and possibly a reprogram of the memory unit, but that no harnesses are needed. Can you confirm one way or the other here?