Bye bye cargo space! I see your carpeting skills have gotten progressively better. I wouldn't worry about the amp overheating, but the one thing I have seen is them taking a shit due to the vibrations. Not sure what kind of output you're looking at with that setup, so I really don't know if it would even be a factor. How does it compare to your previous setup? I would assume you have a good chance of being louder due to the extra cone space.