so I just got a 97 gsr and the owner apparently put a bag of mulch in the trunk and the trunk carpet reeks. We took it out and shampood it with a vaccum cleaner and sprayed deodorizer on it but the next day the car stank again. I have it hanging out now, but I think the stink seeped into the paneling in the car or something. What do I do to make it go away?