I am going to purchase a bandpass system but thier is 1 small problem. I have a 2000 Mustang v6, and on the roof of the trunk their is a black shroud that to me only looks like it holds the amps for the rear speakers (the mach 460 sounds system). It seems to be hollow, The bandpass box will not fit to the back of the trunk if i cant get this out. How do I take down that shroud?