DS3 microphone problem

[jsl]

Hi, I have a 2015 DS3 with RD45 unit and can make and hear phone calls but can't be heard: the microphone doesn't work. The roof mounted microphone is present but there is no continuity between the microphone connector and pins 3 and 9 on connector B in the head unit (the microphone connections I believe).

The wires in the microphone harness are blue and brown and the wires to pins 3 and 9 in connector B are green and purple so I guess there is a connector somewhere between the head unit and microphone.

Can anyone tell me where this connector is please and how to get at it? (how do I remove the fascia panels)
Or give me tips on routing a new cable?
Or suggest what else the problem might be?

Cheers

[GiveMeABreak]

Hi and welcome

It's best to pop your VIN up (automasked on post submission) so I can see what other equipment you may have as this can affect the connections if the microphone goes via an independent telematics unit first.

[jsl]

Hi, the VIN for my DS3 is VF7**************[VIN obfuscated, can be read by forum staff]
Cheers

[GiveMeABreak]

Ok, so yes, you have an independent Telematic unit (you should have the call assistance button somewhere on the dash / ceiling console). So this means the microphone is first routed to the telematic unit and from there back out to pins 3 & 9.

[jsl]

Thanks for the information. Yes, I do have a call assistance button near the radio. I guess I'll have to locate the independent telematic unit and check the microphone continuity to that. Is this what's known as the GPS/bluetooth module? Where is it located please?

[GiveMeABreak]

It's located somewhere up or behind the glovebox on a RHD.