This is a video showing the tray as found in a Singapore's (or Malaysia's) Toyota Harrier:
https://www.youtube.com/watch?v=HUYYPsgeOEUPicture of it installed:
According to what I found on the Toyotanation forum the NA Venzas do not come with this tray and they are not available as a dealer option.
QUESTION: How can I find the part number?