Well, it is fun... but I am waiting with bated breath on the outcome of all of the above "fixes". Has anyone successfully fixed this damned noise? I am planning to upload a wav file of the noise so that it can be identified, but some of the descriptions above are pretty close to what I am hearing... sounds like something loose and not metallic, with a bit of an echo. My gut feel is the subframe, front mounts...but we shall see.
So, what was the outcome of spending all that money...anyone?