C3 fuse keeps blowing

[joecal]

Hello, I'm a new guy here, and just bought a 99 Boxster about a week ago. It's my first Porsche and the car is a lot of fun to drive. The car was fine except for the central locking system and the key fob weren't working. I looked under the drivers seat and took a look at the central locking box under the seat. I really did nothing that I'm aware of, but the central locking system light came on and it started working to my surprise. Today I noticed the windows, interior lights and convertible top aren't working. The C3 15 amp fuse was blown and I replaced it but it keeps blowing the fuse, so I must have a short somewhere. I thought maybe moving the seat forward and backwards might have chafed some wires but I can't see anything wrong from what I can see. Any help is appreciated.