Where's the sliding door beeper?

[pete&gill]

It's annoyed me for years! I'm now determined to disable it, but can anyone tell me where it is?

 

[Loz]

On top on the module in the door.

 

[pete&gill]

On top on the module in the door.

Thanks Loz - it's been driving me mad trying to find the source of the noise. I assume it's necessary to remove the door card to access it?