USB iPod integration is now standard in IS250, IS-F, GS300, GS450h, GS460, LS460 & LS600hL
so in the general section is probably a better choice. Only for the fact that you've got more chance of somebody having an answer for you.
Its not related to Whereis nor is it limited to cars that use their data. IS250 without nav has USB/iPod input for example.
As suggested try connecting via iTunes for any itunes updates. This has worked for me in the past with a similar problem.