Sounds good. Gets plenty loud for me. Not gonna say its the loudest set up ever, cause its far from that, but I am happy with it; considering the work put into it. On the old one, you can probably see black shit around the diameter of the speaker. I was having sealing problems and used some RTV to ensure a perfect seal. It worked great, but wanted to fool around with the wiring inside the box. Lets just say the RTV doesn't look that great when the seal is broken and its impossible to get off. Another reason I went with a new box //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Let me know what you're trying to do with his car, I've had mine apart many times now and could possibly guide you in positive direction. Good luck!!
Michael