Hi, I have a 2009 Audi A4 S-Line 143 bhp, just recently i have started to hear a noise coming from the dash area, this is the model that has a grill/speaker cover in the middle of the dash next to the window heater. Its hard to explain the noise, i thought it was the speaker had popped or something but i removed the grill and speaker and it was still happening. Anyone any ideas ?? Thanks in advance Gary.