^That is not accurate.
All of the RTS's (Roof Transport System) came with the same mounts (There is only one version of the 986 RTS). The 'ear' mounts cause a lot of noise/squeaking, so Porsche issued a TSB telling people to quit using them. You can use the body mounted b-pillar mounts with or without the hardtop, and with any hardtop, even the ones with ears.