I only see the 2 rockford subs and one amp in the trunk though. I think the other Alpine stuff is from their phantom edition. On another note...my friend had that same cap until I told him to remove it.
"previous driver managed 22mpg. i get 16mpg avg" = "i drive it like i stole it and the 16,000 i put on it is more like at least 50,000 miles from a normal person."