2005 a4 parking buzzer location

[Gary Small]

I had a problem with my reverse sensors they were working and then just stopped no sound at all I put the car in reverse with ignition on and found only 3 sensors to be ticking one of the corners was silent this one I have since replaced not easy with largish hands and now all are ticking but still no bleeping so I think I have a failed buzzer/ bleepers there seems to be a difference of opinion as to where the bleeper lives any help would be much appreciated:D

[kite]

No idea where it's located.
You could try an output test with VCDS and see if it works.