I have an exhaust smell in my GTV and I am trying to determine if it is coming from the firewall or trunk. The smell is stronger if the windows are down. The trunk doesn't sit as flush as I'd like on the right side, but it feels like the rubber seal is doing its job. I read a post on Spiders that says the holes in the lid to access the emblems need to be plugged. Mine aren't. Is that the source?