On a side note, if you want additional cross bars for the TRD roof rack, they are now available from your dealer or online, part number PT278-89190-CB. The list price is $81.57, but I bought two from parts.toyota.com for $58.85 which includes free shipping to your local Toyota dealer.
2019 Toyota 4Runner Cross Bar Kit. Roof Rack. Exterior, UlHARDWARE, Products, PIECES, LiNUMBER - PT27889190CB - Genuine Toyota Accessory