Thanks for your replies....There is no vibration form the steering wheel, however yesterday I noticed the noise starting at around 3500-4000 RPM, in 3rd gear, at about 40 MPH or so, so its not just above 60 MPH. I couldn't get it to rattle in neutral though, and so far haven't heard it in 1st or 2nd gear. I'm hoping its something loose in the dash, a friend and I just installed speakers, took underside of dash apart as well as the pain in the @ss stock radio out, so maybe a screw fell out somewhere, I just think it's weird to do it only when i'm giving it gas. I dunno, I've never seen anything like it before.
