Yeah, I just meant something like the stock roof rack/cross bars. I suppose a person could request a custom, custom cover made to accommodate a basket on top depending on how difficult it is to take the basket off though, so that would be up to you.
My guess would be that the cover I have was made simply for a VX with no roof rack/cross bars installed (since they were a factory option), but it's still fit down over the side view mirrors with no need for further adjustment even with the extra inches of additional height of the roof rack/cross bars and a Thule wind deflector assembly attached to the front cross bar.