Tricky car phone question!

mtierney5

So I have a 2006 Celica and Iv gone and bought a stereo from the Toyota gt86. Lovely touch screen etc and fits perfectly. Connected up the wires etc all good. Turned it on all working fine.

Then I paired my phone and it connected no problem. Only problem is it keeps saying no microphone connected! I can make calls, hear the person etc but they can't hear me.

So obviously the gt86 has a built in mic. The Celica doesn't! I have a mic from an old Bluetooth set I had but there is no where to plug it into the back of the stereo....

So what are my options??? Badly stuck on this one and really want to get it working!

Thanks

tossy

mtierney5 wrote: »

So I have a 2006 Celica and Iv gone and bought a stereo from the Toyota gt86. Lovely touch screen etc and fits perfectly. Connected up the wires etc all good. Turned it on all working fine.

Then I paired my phone and it connected no problem. Only problem is it keeps saying no microphone connected! I can make calls, hear the person etc but they can't hear me.

So obviously the gt86 has a built in mic. The Celica doesn't! I have a mic from an old Bluetooth set I had but there is no where to plug it into the back of the stereo....

So what are my options??? Badly stuck on this one and really want to get it working!

Thanks

What does the black plug feed, GPS antenna ?

An oem Toyota mic might not have a standard jack connection (don't know)

At best you'll have to find out which wire(s) going inot the headunit loom come from the mic on a gt86 and splice into them.

Headunit looks well , doesn't look out of place at all.

mtierney5

tossy wrote: »

What does the black plug feed, GPS antenna ?

An oem Toyota mic might not have a standard jack connection (don't know)

At best you'll have to find out which wire(s) going inot the headunit loom come from the mic on a gt86 and splice into them.

Headunit looks well , doesn't look out of place at all.

Thanks. Really like it.

I found this, any idea which ones are the mic?

tossy

mtierney5 wrote: »

Thanks. Really like it.

I found this, any idea which ones are the mic?

A quick google says this..

1- EMPTY
2- Reverse Signal (Red Wire)
3- EMPTY
4- Overhead Microphone (MACC) Black
5- Overhead Microphone (MIN+) White
6- Ground (SNS2) Black/White
7- EMPTY
8- EMPTY
9- EMPTY
10- EMPTY
11- Stereo Jack (AGND)
12- EMPTY
13- EMPTY
14- EMPTY
15- EMPTY
16- EMPTY
17- Vehicle Speed Sensor (Violet Wire)
18- Overhead Microphone (MIN-) Red
19- Overhead Microphone (SGND)
20- EMPTY
21- Steering Wheel Switch (SW1) White
22- Steering Wheel Switch (SW2) Red
23- Steering Wheel Switch (SWG) Black
24- EMPTY
25- Stereo Jack (AUXI) Red
26- Stereo Jack (ARI) White
27- Stereo Jack (ASGN) Red
28- Stereo Jack (ALI) Black

I think the tidiest option would ber getting a GT86 mic from a dealer and one of those 28 pin block connectors.

colm_mcm

Is this some of what you need I wonder

https://tr.aliexpress.com/item/Biurlink-Ara-CD-Changer-i-in-2in1-Micphone-MIC-Adapt-r-Aux-Ses-Kablosu-Toyota-Corolla/32842544084.html

mtierney5

tossy wrote: »

A quick google says this..



I think the tidiest option would ber getting a GT86 mic from a dealer and one of those 28 pin block connectors.

I asked toyota today. The mic is built into the car.... I have a mic from my old Bluetooth kit so if I was sure which two wires to join into I'd do it. Seem to be 4 pins there referring to the mic!

Is it just the plus and minus one I'm joining too?

tossy

mtierney5 wrote: »

I asked toyota today. The mic is built into the car.... I have a mic from my old Bluetooth kit so if I was sure which two wires to join into I'd do it. Seem to be 4 pins there referring to the mic!

Is it just the plus and minus one I'm joining too?

That I don’t know. It’s quitw possible there are 4 pins because the factory mic has two mics for noise cancelling. I really don’t know.

Eric Cartman

Its an electret condenser mic so has + - and signal ground , no idea what the MACC signal is but it may be a power output for accessory etc.. probably wouldnt tap it,

The old mic you have probably only has + and - which is no use , you can get a gt86 mic from toyota to do a pin for pin install


Edit : , yep looked it up its balanced with a 5v preamp circuit on it , MACC is 5 vold , SGND is signal ground and + and - are balanced audio,
https://www.ft86club.com/forums/showthread.php?t=114212

Youre going to end up building a balanced output circuit and a preamp to use your existing mic.

A lot of guys fitting aftermarket headunits are all ditching the OEM mic as it wont work, maybe ask on some forums if anyone will just give you one / sell for cheap

mtierney5

Eric Cartman wrote: »

Its an electret condenser mic so has + - and signal ground , no idea what the MACC signal is but it may be a power output for accessory etc.. probably wouldnt tap it,

The old mic you have probably only has + and - which is no use , you can get a gt86 mic from toyota to do a pin for pin install


Edit : , yep looked it up its balanced with a 5v preamp circuit on it , MACC is 5 vold , SGND is signal ground and + and - are balanced audio,
https://www.ft86club.com/forums/showthread.php?t=114212

Youre going to end up building a balanced output circuit and a preamp to use your existing mic.

A lot of guys fitting aftermarket headunits are all ditching the OEM mic as it wont work, maybe ask on some forums if anyone will just give you one / sell for cheap

Eric thanks a million for that. At least now I know where I'm going with it. Will try a few breakers for a mic. Cheers man ðŸ‘

colm_mcm

Traynors have a 2012 GT86, they’ve advertised the radio from it on eBay, they may have the bits you need.

Link for reference, I’d say it’s the same unit you have?
https://www.ebay.ie/itm/2012-Toyota-GT86-Radio-CD-Stereo-Sat-Nav-Unit-PZ473-00213-00/122910471331?hash=item1c9e08f4a3:g:cqEAAOSw~o5aWKSu

mtierney5

colm_mcm wrote: »

Traynors have a 2012 GT86, they’ve advertised the radio from it on eBay, they may have the bits you need.

Link for reference, I’d say it’s the same unit you have?
https://www.ebay.ie/itm/2012-Toyota-GT86-Radio-CD-Stereo-Sat-Nav-Unit-PZ473-00213-00/122910471331?hash=item1c9e08f4a3:g:cqEAAOSw~o5aWKSu

That's the unit ya. Cheers. I messaged them there now. Rang a few places today. No one wants to cut them off for me!!! Oh it's part of the wiring loom! Agghh

mtierney5

mtierney5 wrote: »

That's the unit ya. Cheers. I messaged them there now. Rang a few places today. No one wants to cut them off for me!!! Oh it's part of the wiring loom! Agghh

No joy anywhere. Even getting a touch of attitude!

Eric Cartman

mtierney5 wrote: »

That's the unit ya. Cheers. I messaged them there now. Rang a few places today. No one wants to cut them off for me!!! Oh it's part of the wiring loom! Agghh

you can buy the connector elsewhere, surely the microphone itself plugs out ?

edit : http://www.ft86club.com/forums/showthread.php?t=126113 yeah it plugs out and has a few inches of cable on its side, theres no loom ruining there....

double edit : the microphone on the Prius is the same one with a different housing, may be easier to find.

colm_mcm

Some very useful info here IMO

https://www.toyota-tech.eu/aimuploads/b93d21b8-537d-453e-b359-b28bf7f192f1/GT86_RHD_Touch_PZ473_00213_00_AIM_002_549_0.pdf

colm_mcm

PZ445-00333-02 Seems to be part number for OEM retrofit mic according to pdf I linked earlier

http://club.caradisiac.com/sacci/tns510-96906/photo/pz445-00333-02-5709047.html




https://www.allcarpartsfast.co.uk/toyota/toyota-pz4450033302-spare-tns-510/