2004 Toyota Tundra Owners Manual - Page 120

'04 TUNDRA_U (L/O 0309) Anchor brackets Use one anchorage on the back of rear seats and two anchorages on the floor as shown above to attach the top strap. Anchors are installed for each rear seating position. TO USE THE ANCHORAGES: 1. Remove the head restraint. Outside position Center position 120 2004 TUNDRA from Sep. '03 Prod. (OM34426U)