Wow, years and years ago I did the Essam version and contributed some to the thread, and I return to the forum and it is still a hot subject, with different versions and 32,000 hits!

BTW, mine is still going strong. Cut a hole in the trim panel and installed a grill so it looks stock. Frankly I wouldn't worry too much about tiny differences in volume as I doubt you could hear the dif, but some of the new boxes look very nice indeed and so why not.

Mine was also updated with new speakers so it is vastly better than the awful original.