HELP Please, 2001 Boxster S Factory Options

[boxstergreenbay]

First time Post.........
I am looking to purchase a 2001 Boxster S.
The current owner has no idea about what the installed options are on the car.
How do I find this information?
He says "It's Loaded".
I test drove it today.
There were three "dead" switches on the left side of the upper console and two "dead" switches on the rear of the center console.
Near as I can figure, the only option was a 6 CD player because it has the trip computer.
I would appreciate help, as I'm trying to determine an offer price.
I've never owner a Porsche before, so I'm learning the hard way at this point.