my parner just took delivery of his 2003 g35. There has been comment on freshalloy.com of problems with A/C. when a/c is running and engine is reved from 2500 t0 3000 rpm, there is raucous noise from under hood. Shut off a.c noise is gone. As g35 and z are on same platform, I'm wondering is any new z owners have the same problem, or was car a/c modified to eliminate this problem?