Dashboard vibration noise

[WeekendMechanic]

The noise comes from the middle of the dash and it starts in fourth gear.
I bought and garaged my golf before fixing it, without testing it on the road so i don`t know if the vibration noise was always there or after because a few months back, I took out the dash to pass an electric windows wiring loom.
Did I not put it back in right maybe that soft foam for the vents were not on properly surrounded?

[sharki786]

Could be the sound deading material that you may have not put right. I would also check all the nuts to see if they are tight

[WeekendMechanic]

Yes I tighten the outside nuts but it had no affect.
Just to be certain and have everything ready for when I dismantle can I ask, that sound deafening material if its on right or perished,can I use something else or would a vw dealer have it? 

[vwwvgolf]

unfortunately things are never quite the same once they have been taken apart.

could be as silly as a connector or wire touching on somthing somewhere