My wife and I just picked up an '08 V8 XC90 with the sport trim (black exterior with white leather). So far, we are both in love with it. However, I have noticed a fair amount of rattling coming from the front door trim when I listen to music with any moderate bass. The culprite seems to be the door handle plastic, not the speaker grill as I have seen in other threads/forums. Has anyone else experienced this? Any reccommended fixes??