LATCH attachement: do I have to go to dealer?

[lurky]

Hello
I have a 2007 boxster, I'm the second owner.
I'm going to be taking our 4 month old to daycare in the morning and special seating is required.
It would be much easier to secure the infant seat if the car had LATCH attachments for seating.
The manual said that the LATCH attachment is installed by the dealer and after a little research it looks like they charge $500 to do it.

I am not fond of my dealer to start with and I always try to do a job myself before spending $$$. Are the LATCH attachments available anywhere ? And are special tools needed to install them?

Thanks
P.S. a second issue is the the passenger airbag should be disabled when the infant is int he car, and the sensor should handle that, but there is also an option to enable/disable the airbag with a key, which I don't have. Again, can I obtain this W.o. dealer?

[Flavor 987S]

Here's what I know. Starting with the 2006 987 (the 2005 did not have it) Porsche started putting in smart air bag technology for the passanger seat. It senses automatically if the passanger weights over 90 pounds (approx.). If under the 90 pounds, air bags are off.

So with my 2006 when I got my car, my daughters at the time were about 4.5 and 2.5 years old. I was using "booster seats" at the time (check State laws for your area regarding a 2-seater car). So all I had to do was put a thick towel on the leather seat, plunk down the booster seat, and strap in either daughter.

Don't know if this will help you (but it will tell you if your wife weights over 90 pounds!) now, but in a couple years it may come in handy.

This upgrade Porsche did, saved me over $1,200 when I bought my car vs a 2005 MY since I did not need the special Porsche child seat and programming charges.

[lurky]

Thanks for the info