Hyundai doesn't carry the 7way; you need to get it from Kia; the Telluride 7 way is plug and play. Also includes trailer brake harness. If you want this one order from online as it is much more affordable.
I just bought a roof rack that looks almost identical to that one for $99 from Harbor Freight. I'm ordering a can of rubberized bed liner spray ($12 Amazon) to rust-proof it. I'll post pictures when I'm done.