2005 grand prix comp g. All the sudden both remotes quit working all together (new batteries, tested signal, both were good). Wondering where the receiver is located so I can see about replacing it. after googling it, it looks as if it is either part of the body control module or its own unit (neither were very clearly explained.). I saw it might have been located in my trunk, but it was no where to be found. Is it buried in the dash somewhere?