Hi there. After some advice with regards to my 2002 Audi A4 Cabriolet 2.4. Car has just covered 89000 miles. In the last 600 or so miles its developed a noise which appears to be coming from the gearbox. Its most audible when accelerating at around 40 to 50 mph in 3rd and 4th gear, also apparent when accelerating at around 70 mph. If you take your foot off the throttle the noise ceases!! Im guessing its got to be a gearbox bearing unless anyone could advise otherwise?? Car still drives ok and theres no apparent other issues.