Child Seats in New Boxster

I would greatly appreciate any advice regarding the use of car seat/booster seats in the 987 Boxster. Specifically, can the air-bag be turned off? Can the dealer put in a kill-switch for this? Where is the switch located? How much should they charge for this? Thanks!

[98Boxster98]

At the Porsche site, there's some info on the new airbag deactivation:

Official Porsche Airbag Deactivation

I have the old style child car seat so I can't offer any personal insight in the new design.