Welcome fellow Los Angeles Boxster owner. You'll enjoy this forum alot. Afew things to remember, Use the search, check your spelling and take care of your plastic window on your convertible top by giving it the karate chop to insure it folds correctly, they can shatter like a plastic dixie cup during the cold los angeles nite when its 55 degrees outside if they dont fold correctly.
Do a search for "Chop" and you will eventually find a picture of where the chop should happen. This advice will save your $600 atleast if you choose to follow it.