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[TheBoy]

Telematics wired on to the audio of the prewiring kit.


Speech is quiet, have to turn it up a long way.

DTCs - one about aerial, and one B2369 Audio Line Output


Not got as far as doing measurements yet, but any ideas?

[VXL V6]

Not sure if it's relevant but I assume telematics uses the in built phone loom that is normally taped up above the glovebox?

On my setup (NCDR2013, Bose, Autoleads 06-109B with transformers for Bose, Nokia CK-7W and 6230i, E50 handsets in appropriate cradle) I find i'm always having to turn the head unit volume up.

Initially it took some setting up on both the handset volume and the Nokia volume button but I still have to alter the HU volume when the car is moving.

Never had these issues with my last car setup - CCR600 etc so can't help thinking it's either the Siemens 'line in' sensitivity or possibly something to do with the Bose.

[Dave DND]

Never had these issues with my last car setup - CCR600 etc so can't help thinking it's either the Siemens 'line in' sensitivity or possibly something to do with the Bose.

My unconfirmed thoughts are that there are a few different options of microphone available, and they all have different sensitivities, depending on which head uit they were originally intended for

 :-/

[TheBoy]

Never had these issues with my last car setup - CCR600 etc so can't help thinking it's either the Siemens 'line in' sensitivity or possibly something to do with the Bose.

My unconfirmed thoughts are that there are a few different options of microphone available, and they all have different sensitivities, depending on which head uit they were originally intended for

 :-/

You're right on the mics - NCDx series needs a different mic to ccrt700 etc.

Its not the mic, its the audio level in car (purely from telematics) thats the issue.

[Dave DND]

Never had these issues with my last car setup - CCR600 etc so can't help thinking it's either the Siemens 'line in' sensitivity or possibly something to do with the Bose.

My unconfirmed thoughts are that there are a few different options of microphone available, and they all have different sensitivities, depending on which head uit they were originally intended for

 :-/

You're right on the mics - NCDx series needs a different mic to ccrt700 etc.

Its not the mic, its the audio level in car (purely from telematics) thats the issue.

Was that the same issue as the two wire and three wire mic`s, or was that another problem?

[Dave DND]

Initially it took some setting up on both the handset volume and the Nokia volume button but I still have to alter the HU volume when the car is moving.

Are there any settings / cables etc that need to be altered for this - the SCV  (Speed Controlled Volume) wire at the rear of most Vx head units should subtlely alter the volume as you are going along, is it not supposed to link and work with Telematics then?

[TheBoy]

Never had these issues with my last car setup - CCR600 etc so can't help thinking it's either the Siemens 'line in' sensitivity or possibly something to do with the Bose.

My unconfirmed thoughts are that there are a few different options of microphone available, and they all have different sensitivities, depending on which head uit they were originally intended for

 :-/

You're right on the mics - NCDx series needs a different mic to ccrt700 etc.

Its not the mic, its the audio level in car (purely from telematics) thats the issue.

Was that the same issue as the two wire and three wire mic`s, or was that another problem?

Using the mic from ccrt700 (or a Nokia mic - the telematics is made by Nokia) resulted in other party not hearing me.  I changed from the 2 wire ccrt700 mic to the 3 wire ncdc mic (though only 2 connections are used!), and that solved that problem.


My current telematics problem is I can't hear the conversation unless volume whacked right up.  And telematics throwing a fault code about audio out.

[TheBoy]

Think I am a step nearer to knowing whats gone wrong here.  Anyone know where audio isolator U29 is?

[TheBoy]

Rather than resolve, I think I'll live with it, as I need the bluetooth kit working as well.

Was thinking along lines of using a relay, activated by CK-7W's mute line, to switch between telematics and CK-7W

[VXL V6]

Dusting off this old thread as my setup suffers the same issues. The volume level output from the telematics is low / output from head unit cannot be increased to a 'comfortable level' though the system is useable.

The setup I have is:-

Facelift with prewiring
Prewiring connected to Autoleads 09-106B (built in matching transformers) connected to Nokia CK7W/CR66 & E50 handset - Works fine.
Telematics loom constructed from modded Trafficmaster loom
NCDC2015/CID/Telematics/BOSE

Did you ever investigate the issue any further TB?

  

[Dave DND]

Is it just the phone audio input to the head unit that is quiet?

Might have a potential solution  :-/

[VXL V6]

Phone Audio input for the Nokia kit is fine (and can be adjusted via the separate volume control, telematics is too low with no option to raise it.

Basically the Nokia is set correctly so that you don't need to adjust the head unit when a call is received / made.

[TheBoy]

Its the impedence that buggers up the telematics volume.  In the process of making up a little mixer circuit...

[VXL V6]

Its the impedence that buggers up the telematics volume.  In the process of making up a little mixer circuit...

Make two!  

[Dave DND]

We use low level line boosters for driving amplifiers a little harder than they need to be, and as they are fully adjustable (rca in / rca out) I wondered if one of these in line with the telematics signal would boost it up to an acceptable level ?

Will get a picture and some details on my website in the next few hours so you can see what I am on about

 :-/