I have a 2004 Volvo S40 and I bought it about six months ago. We have been getting a lot of rain lately and I noticed that the carpet on the passenger side of the car was damp. I put some plastic down to try and figure out where the water was coming from and it looks like it is coming from underneath the glove box. Any ideas on why that would be leaking? Is this something that happens a lot with these cars? How hard is it to fix?