I also have an '04 S and have the Bose option in my car. I ordered a set of Lloyd's floor & truck mats (the Bose option made no difference) . My interior is black and the car is red so I had Lloyd's embroider
Boxster in red on a black mat with a silver
S, I did the same on the truck mats. When they arrived I had to order an extra set of cheap ones.
The reason is the mats looked so good I didn't want to get them dirty! These are truly the highest quality mats you can get, better than OEM that's for sure. I use the cheap ones for everyday and swap out for the nice ones when I go to car shows or when I take my wife out on the town. They really set off the interior.
This is what mine looks like,
http://cgi.ebay.com/ebaymotors/_Car-Truck-Parts-Accessories__2000-2008-Porsche-996-987-BOXSTER-S-Floor-Mats_W0QQitemZ120324894736QQadiZ2865QQadnZCarQ20Q2 6Q20TruckQ20PartsQ20Q26Q20AccessoriesQQcmdZViewIte mQQptZMotors_Car_Truck_Parts_Accessories?hash=item 120324894736&_trksid=p4506.c0.m245&_trkparms=72%3A1171%7C65%3A12%7C39%3A1%7C240%3A131 8 .