Securing anything to the sliding cargo tray of a 5th Gen 4Runner is tough. Sure, there are tiedowns between the cargo tray and the back of the second row seats, but strapping anything to them will leave your cargo tray unusable as you will not be able to slide it out.
In this video, I describe my solution for adding an anchor point in front of the cargo tray.
Begin Disclaimer
This video is for demonstration purposes only. It is me demonstrating how I performed this modification. I make no warranties, nor do I take any responsibility for damage to your vehicle. Always seek advise or assistance from a trained professional.
End Disclaimer