Anyone know where the speaker is for hands free Bluetooth system?

It is really crackling & popping, I’m hoping it’s just a worn out speaker rather than Bluetooth ecu.
The other audio / radio speakers are sounding fine. So guessing this is a separate speaker for the system hidden away somewhere.

There isn’t a separate speaker. It uses the same speakers that the audio system uses.

If you put some music on with some decent bass and turn the volume up enough, can you hear any of your individual door speakers rattling or popping? 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

The Bluetooth control unit's are often swimming in the boot as they are the most exposed ECU im afraid sir...

Thanks for the advice, I will investigate further.

Audio system seems fine even cranking up the volume.

I will take a look at the Bluetooth controller for signs of water ingress.

Thanks again people, this forum is brilliant