high pitch buzz/whistle/screech

[P-Courty]

I've worked out my noise!

It's a plastic on plastic squeak, will be another garage f*ck up during the matrix change, fairly certain it's some air ducting that's not been pushed back together properly.

Mines done that sfor the past 5 years i've had it and it's down to the blower system or ducting somewhere never been able to locate it, had the airbags out and everything and still does it, usually on the second click of the blower speed or higher, very annoying