Do the mightymounts on the xterraownersclub website fit to any snowboard carrier? I have a Thule snowboard carrier, but i need the mounts so i can attach them to the top of the crossbars. I'm looking at the pictures and the directions, but it doesn't look like it would fit because there are no screws that would go into the snowboard carrier??? Also does anyone know if I can get these mounts directly from a nissan dealer?

One more question, does anyone know what other aftermarket mounts I can buy that will fit onto the the cross bars on my xterra?
thanks