Sunroof parts aren't easy to come by,...the switch is a Bosch part, as is most of the mechanicals of the ASC sunroofs,...I believe the switch is still available, check with a Porche dealer, IIRC the PN has not been superceded, list last I recall (a few yrs ago) was $60,.....check with Doug Hemmingway (google) he has a NOS site (I can't recall it name), Doug is very heavy into the sunroof supplies/parts for ASC equipped cars

Mike