The archives contain a huge amount of good material on DSP vs Base vs aftermarket stereos in the E39. I've been looking through it for days and days and days.....(my wife says I am obsessed over every aspect of my new 540 order, especially the stereo. She's right). There is, however, one critical thing missing, that is, whatever happened to the website of JimL showing his subwoofer installation. (ref www.bimmer.org/5series/messages/archive/msgsy1999w11/13163.html which points to http//188.8.131.52/organization/e39sound.html). The links don't work any more. Posters found it to be extremely good, but it appears to be gone. JimL, are you out there? Is the website gone, or is there a new URL? Anyone else know where to look, or maybe have copies of some pics from his install??