Interior fan noise

[Nimbus265]

Ive just noticed that when I switch off the car I can hear a fan (sounds like a computer fan!) behind the dash. Anyone know what it is?

 

[veeeight]

5F MMI unit in the glovebox.

 

[Blackwhite]

I never new this. Thanks Veeeight.

 

[Nimbus265]

Thanks Veeeight - I thought it may be but want sure