I think something is loose inside the car. When going through bumpy tarmac, the noise is also heard. I tried to open up the headlining but the front light area is not a sunglasses box. I am not sure know how to open it
It is a brilliant idea. Do you have any smoke generator that you would recommend?
That's exactly what I thought. I've put the exact same part number in on a few websites and the part is coming in at around £80-100. I think I'll go for one of them.