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Joying Intel AM/FM Radio Issue

So I just installed this unit in my 2002 sierra
https://www.joyingauto.com/joying-8...een-car-navigation-system-with-4g-module.html
AM and FM radio were working fine.
Drove around for about an hour. Came back to my vehicle later on radio worked for about 10 seconds and now my radio just makes a humming sound like something is turning off and on. I took the radio out, rechecked my connections (I connected the Antenna CONT wire to my blue antenna wire, and even tried switching it with the AMP cont wire). I have turned on the setting of ANTENNA ON in the unit options.
What could this be? My bluetooth and music work just fine, it is only the radio. My truck doesn't have a visually retractable antenna, but it does have an onstar antenna, so maybe it technically it is a "power" antenna. Regardless it was once working and now is not. I have emailed JOYING, and their help in broken english is useless. I have had this radio for 1 day and its already malfunctioning. I had a pumpkin px5 in my last truck that glitched here and there, this is just unacceptable on day 1. Not to mention this single din unit doesn't even click into place within the single din radio chassis/housing....
I am attaching a google drive video so that you can hear the humming I am talking about.
https://drive.google.com/file/d/117mP0K_OWPB_O4zjBE4Ur9HM95GJvJpy/view?usp=sharing
Any help is appreciated

As a guess, sounds like the tuner has failed.

marchnz said:
As a guess, sounds like the tuner has failed.
Click to expand...
Click to collapse
Is that something I can fix through software or taking apart the unit? Or will I have to exchange for a new one?

Klyde PX6 Unit GPS issue. (MT3337 chipset)

Hi All,
I have just installed a Klyde PX6 unit in my CX5 (with Bose). All is fine except for a GPS issue (built in). The GPS is showing a huge lag in position and speed updates as can be seen in the videos. One video shows same app running on Klyde unit and my mobile.
I need to send commands directly to the MT3337 GPS chip or replace it with a non averaging unit (real time/ live updates). It would be good if I can access the NMEA data stream to confirm it's the GPS chipset/module or the the android service being delayed/not serviced regular enough.
Klyde unfortunately have been a little more than useless with their engineer saying its normal GPS behaviour. Maybe for China but not for the rest of the world. I sold GPS modules for 10 years and never saw this behaviour.
Any clues on how to address this?

You should use the GPS mouse which has been delivered with the unit, instead of using the OEM on the roof.
You would have the same behavior with most OEM installed GPS antennas, independent of the car.

I am using the supplied GPS antenna.. there is no way to interface the tomtom Mazda factory one.

malster181 said:
I am using the supplied GPS antenna.. there is no way to interface the tomtom Mazda factory one.
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1 minute ago
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#3
I am using the supplied GPS antenna.. there is no way to interface the tomtom Mazda factory one.

This PX6 is using a MT3337 chipset. I'll try interfacing to the NMEA (TX DATA) stream from the MT3337 and see if it is delayed at that point. If so, then it's a config issue in the MT3337. If it's not delayed there, then it's a Klyde issue.
Also discovered the ODB2 Bluetooth interface is not working.
Illumination wasn't working originally, I had to put a 4.7K resistor to ground as it wasn't pulling low enough for it to register lights were off...
Not been a great experience with this Klyde thing. Was looking forward to importing them for resale, but not now if this is the sample unit performance.

malster181 said:
This PX6 is using a MT3337 chipset. I'll try interfacing to the NMEA (TX DATA) stream from the MT3337 and see if it is delayed at that point. If so, then it's a config issue in the MT3337. If it's not delayed there, then it's a Klyde issue.
Also discovered the ODB2 Bluetooth interface is not working.
Illumination wasn't working originally, I had to put a 4.7K resistor to ground as it wasn't pulling low enough for it to register lights were off...
Not been a great experience with this Klyde thing. Was looking forward to importing them for resale, but not now if this is the sample unit performance.
Click to expand...
Click to collapse
tbh... I still have 3 different Klyde units working in car and bench and had some more in the past.
None of your reported issues have ever been observed on any of my units.
OBD2 BT issues are only if you bonded any phone before you added the BT stick. BTW... not all sticks are working. That is a common thing in Chinese radios.
btw... If you have any issues, you just should ask Klyde. They are really responsive, at least if you ask Fany.

Hi Rigatoni,
As I said, I have asked and they are not so helpful. Insisting the GPS functionality is normal. If I drive atv60k/hr and stop, GPS takes up to 15 secs to show a stop or slow down. I have sold GPS in a past life both commercial and military and never seen such a lag before. Even old SiRF and Siny chipsets are so much faster.
Klyde did give the pinout if the GPS module, so I'll start but analysis of the MT3337 data stream. I have a few other GPS modules here I can try pop in it.
Anyone know if there is a config file in Android or the Klyde somewhere that sends the commands to the GPS module to set it up, eg set buad rate, sample rate etc? Or is the MT3337 just running default settings?
As for the ODB2 I wasn't aware of that issue, and again Klyde hadn't advised of it. The ELM unit was also supplied by Klyde. So how do I undo the hijacking of the serial port by a phone and release it for ODB2…? Factory reset?

malster181 said:
Hi Rigatoni,
As I said, I have asked and they are not so helpful. Insisting the GPS functionality is normal. If I drive atv60k/hr and stop, GPS takes up to 15 secs to show a stop or slow down. I have sold GPS in a past life both commercial and military and never seen such a lag before. Even old SiRF and Siny chipsets are so much faster.
Klyde did give the pinout if the GPS module, so I'll start but analysis of the MT3337 data stream. I have a few other GPS modules here I can try pop in it.
Anyone know if there is a config file in Android or the Klyde somewhere that sends the commands to the GPS module to set it up, eg set buad rate, sample rate etc? Or is the MT3337 just running default settings?
As for the ODB2 I wasn't aware of that issue, and again Klyde hadn't advised of it. The ELM unit was also supplied by Klyde. So how do I undo the hijacking of the serial port by a phone and release it for ODB2…? Factory reset?
Click to expand...
Click to collapse
Strange with your GPS... never seen that. I use TomTom in my units and it doesn´t lag more than 1 second in bad cases.
To change the GPS module you need to get into the rooted system. Out of memory I don´t know the exact path. I also have only a PX6 on hand, but this has a complete different MCU and I don´t know if this is the same. Will have a look tomorrow after the files for it to change.
To get the phone off of the unit, you need to first of all close BT connection on your phone.
Then remove start the radio and remove the connection from the radio... completely.
Shut down the radio
Turn BT on your phone on and remove the connection in your phone.
Close BT on your phone again or shut it down.
Put in the OBD2 dongle in your car
Turn the radio on and set the PIN to 0000 or 1234 (depends on the dongle) There are no other possible PINs available, just one of these 2 written in here.
Search for the OBD2 and connect to it.
Start BT on your phone and search from the phone!!!
Enter the PIN as written and that´s it.

rigattoni said:
Will have a look tomorrow after the files for it to change.
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Click to collapse
Hi rigattoni,
By chance did you get around to looking at this?

Ok so I have installed a different chipset (oh and seems Klyde didn't even know what GPS chipset is in their unit, as it's not MT3337 as they advised), and the result is the same.
So it's a Android issue, maybe the location service NMEA data queue is not being cleared it refreshed fast enough. I don't know enough about Android to know how it works, but I gather the NMEA data from GNSS module is read and saved or queued somewhere, then this is read by the location.service routine when required.
I could also be that the GPVTG sentence is being dropped by Android, are the NMEA sentences accepted by Android location service filtered?
Can anyone help here where to look it's even possible with unrooted unit ?
Cheers,
Mal

rigattoni said:
You should use the GPS mouse which has been delivered with the unit, instead of using the OEM on the roof.
You would have the same behavior with most OEM installed GPS antennas, independent of the car.
Click to expand...
Click to collapse
Indeed I'm experiencing this problem (lag) while using an adapter and the OEM roof GPS antenna... Why is that?? It's a pity because OEM antenna is perfectly placed and concealed...

XxFraNxX said:
Indeed I'm experiencing this problem (lag) while using an adapter and the OEM roof GPS antenna... Why is that?? It's a pity because OEM antenna is perfectly placed and concealed...
Click to expand...
Click to collapse
I just know out of tests that I had the best results with the GPS mouse.
All external antennas I tested have been worse.

Hello,
I have exactly the same problem.
It's also from Klyde with a PX6.
Is there a solution?

Figo Emilio said:
Hello,
I have exactly the same problem.
It's also from Klyde with a PX6.
Is there a solution?
Click to expand...
Click to collapse
Solution for what?
GPS?
You should give some more information...
Exact unit number you buyed
MCU
Android version

Sorry.
A solution for the delayed GPS signal.
I Hope the Pics are ok?!

Teyes cc2 plus installed but no sound

Hello, I recently bought a Teyes cc2 plus for m'y Mazda CX-7 2009 and I installed it. Everything Is working and plugged in except there is no sound. I tried to do a Factory reset and a canBus update but it doesn't repair it. Can someone have an idea on how to make it work properly and what IS the problem? Thank you very much

angelus2511 said:
Hello, I recently bought a Teyes cc2 plus for m'y Mazda CX-7 2009 and I installed it. Everything Is working and plugged in except there is no sound. I tried to do a Factory reset and a canBus update but it doesn't repair it. Can someone have an idea on how to make it work properly and what IS the problem? Thank you very much
Click to expand...
Click to collapse
Hi, if Radio only has no sound probably is wrong chip settings in hidden menu, try changing to other IC type - like 7686, sx7380 etc.
If not restored upgrade new android version (find similar software here on forum for your devcice and upgrade from USB)

Thank you for the response. Do you know how I can access this hidden menu to see if this is the problem?
I have a grey connector on the loom that I can't connect to anything and a blue wire that is named AMP-C.
Do I need to connect those for the sound to work?

You must connect antenna cable - that black wire one with fat belly at picture nb. 4 along with gps and dab black wires (if they are for that - with gold ending), and blue and black for amplifier I think and harness cable / this wires in a lot

Can you show me back end of a radio what looks like ? Where ports and connectors are.

That's all I got.

Connect all wires properly and plug fm antenna in device, all wires as I see have designation what is for, connect them all in ports where they belong. Turn device on and go inside hidden menu of device , with pin 8888 (or 0000 or what number is for your device and once in take photo of that menu , if has RADIO MENU inside take photo of that aswell).

I already did that and try a lot of things but nothing works. There is a developer menu and inside there is nothing about the sound or radio. Same for the factory menu. I tried to connect the blue wire named "amp-con" with the red wire named "ACC" like the vendor on Aliexpress said but it doesn't work.

angelus2511 said:
I already did that and try a lot of things but nothing works. There is a developer menu and inside there is nothing about the sound or radio. Same for the factory menu. I tried to connect the blue wire named "amp-con" with the red wire named "ACC" like the vendor on Aliexpress said but it doesn't work.
Click to expand...
Click to collapse
Do you have phisical amplifiers in car (connected to audio)? If do unplug it and start machine and see if helps (if does help amp is too high and powerfull for your device).
Maybe some antenna like GPS antenna is faulty and is interfering with device, it happened to me once. I bought a new gps antenna and radio and sound works now. To test this simply disconnect GPS antenna and plugg FM antenna and try it without gps antenna, if works that is the case here.

Are you connecting to an external amp? If so you need to be able to turn on that amp with the amp trigger wire (blue wire)

There is an amplifier inside the car yes. It's in the trunk a bose amplifier. What's weird is that when the original radio is connected it only uses the big connector between the car and the radio.

angelus2511 said:
There is an amplifier inside the car yes. It's in the trunk a bose amplifier. What's weird is that when the original radio is connected it only uses the big connector between the car and the radio.
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Is it a factory amp or aftermarket? Factory amplifiers usually use the SPEAKER level inputs

It's the factory amp. Here more pictures about what I have for wires.

My guess is that your amp isn't getting a "turn on" signal. Go to FACTORY SETTINGS and make sure you have "with amp" (or something like that) checked to YES.
Some factory amps are turned on through CanBus and some are simply turned on with a trigger wire. Not sure which one yours is... you will have to investigate, but it sounds like the amp is off.

I have already set the amplifier power supply to Yes inside the factory settings but no sound again. Could it be the canbus brown box that is the wrong one or do you think this is something else.

angelus2511 said:
I have already set the amplifier power supply to Yes inside the factory settings but no sound again. Could it be the canbus brown box that is the wrong one or do you think this is something else.
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Click to collapse
Reduce amplifier level and see if helps, some amplifiers are to strong for aftermarket headunits. Try with low audio levels first. Just to see if works.

Anton TNT said:
Reduce amplifier level and see if helps, some amplifiers are to strong for aftermarket headunits. Try with low audio levels first. Just to see if works.
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Click to collapse
I don't know how to do that in the settings of the radio. What do you mean by "reduce amplifier level"?

angelus2511 said:
I don't know how to do that in the settings of the radio. What do you mean by "reduce amplifier level"?
Click to expand...
Click to collapse
Do you have DSP effect in headunit ? Turn to lowest levels, then restart machine (and remeber old setting in case you might turn back)

I'm going to check that in a minute

No there isn't dsp effect in the menu. In this video you can see that the only thing that's need to be connected except the rear camera(brown + acc) is the big red connector. I have the same car has him. His car have the bose system too. The only thing that he have different is the canbus decoder that is named MZ-SS-06 when mine is RP5-MZ-002. Could it be the real problem?

Junsun V1 Pro 2/32 radio memory problem

Hi!
My problem would be the following, I have a junsun v1 pro 2/32 unit that I upgraded and was successful, but now the problem above is that it forgets the radio stations every time it starts and the radio program doesn't start automatically as it does now. And the icons I arrange with a new start disappear from the home screen. how can it be repaired?

Hi see this post ... https://forum.xda-developers.com/t/general-questions-about-ff-5000-8227l-demo.4320569/page-2

There you will find info on this error.

Hello gents. Sorry for thd silly question but how could I fix this "settings not memorized" issue? I read previous msg but not sure if it s same pb than mine.
Is it a pb of cable or bundles not well placed behind the device? I asked seller who propose me the cross connect cable so i am not confident at all from where this issue is coming from?

Peaky00 said:
Hello gents. Sorry for thd silly question but how could I fix this "settings not memorized" issue? I read previous msg but not sure if it s same pb than mine.
Is it a pb of cable or bundles not well placed behind the device? I asked seller who propose me the cross connect cable so i am not confident at all from where this issue is coming from?
Click to expand...
Click to collapse
If still memory is not saved after trying everything last resort is to cross wires red (ACC - key ignition) with yellow (+battery - constant 12v) on harness cable on the back.
It is obvious that here is problem badly connected wires from resellers.
On my unit I had similar problems with memory, but it is another problem, had installed led lights and led interior decoration, after taking them off, everything turned to normal, interference is problem. They must have resistors installed.
Also , some USB drives when attached to device , can write whole memory on them instead of main internal memory of unit. Try first time configure settings withhout them in ports and then see if problem is solved.

Thanks a lot. But how do I know it is the right cable?

Peaky00 said:
Thanks a lot. But how do I know it is the right cable?
Click to expand...
Click to collapse
Use multimeter to test voltage... constant 12v receiving from battery must be yellow wire or white wire (depends of model of a car), red one (ACC wire or ignition key wire) receives charge when ignition key is on contact mode or engine is on. If no canbus device is present with unit red wire must be connected with 12v yellow one and yellow one to red one in order to keep memory of radio. If disconnected from constant battery 12V radio/unit will lose memory and reset its state. After rewiring set and configure unit again and restart unit.
If canbus device is present with wires, procedure is to find correct wire that corresponds with red wire (find ACC key ignition wire on harness cable leading from steering wheel and that has charge when ignition key is in contact mode or engine is on) and then switch those wires with constant 12V BATTERY.

Thanks a lot.
I did find with multimeter two points with 12V when car is off. So now, how could I make sure to choose the right cable and put it on one of these two 12V points ?

Peaky00 said:
Thanks a lot.
I did find with multimeter two points with 12V when car is off. So now, how could I make sure to choose the right cable and put it on one of these two 12V points ?
Click to expand...
Click to collapse
the one with constant battery charge (yellow) must be crossed with red one (ignition key/accessory)

Hey guys, I’m having problems with searching the radio station on v1 pro ? Antenna cables are fine and the stetting for radio stations are set to Europe but still can’t get it play ? Any help would be great.

Rahul199090 said:
Hey guys, I’m having problems with searching the radio station on v1 pro ? Antenna cables are fine and the stetting for radio stations are set to Europe but still can’t get it play ? Any help would be great.
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Click to collapse
Does the radio app try to find stations or is it more like frozen?

Rahul199090 said:
Hey guys, I’m having problems with searching the radio station on v1 pro ? Antenna cables are fine and the stetting for radio stations are set to Europe but still can’t get it play ? Any help would be great.
Click to expand...
Click to collapse
I’ll upload the settings I have got for radio soon.
TorstenH said:
Does the radio app try to find stations or is it more like frozen?
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Click to collapse
yes it’s trying to find stations but the needle goes through and no stations found ? I have check everything possible but can’t seem to get it working ?

TorstenH said:
Does the radio app try to find stations or is it more like frozen?
Click to expand...
Click to collapse

Rahul199090 said:
I’ll upload the settings I have got for radio soon.
yes it’s trying to find stations but the needle goes through and no stations found ? I have check everything possible but can’t seem to get it working ?
Click to expand...
Click to collapse
You may have an active antenna which is not connected to power supply.

TorstenH said:
You may have an active antenna which is not connected to power supply.
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Click to collapse
I have checked that behind the head unit and the radio adapter which came with headunit is plugged in?

Thank you I have managed to get it working. The active antenna plug was loose. Fixed that issue and the radio stations are back up and running.

Rahul199090 said:
Thank you I have managed to get it working. The active antenna plug was loose. Fixed that issue and the radio stations are back up and running.
Click to expand...
Click to collapse
Thanks for confirming my assumption.

car multimedia android - no radio sound

Hi
Car wolfswagen duble din andoid 4.4.2 system.
no rado sound at all . youtube and bluetooth sound is working.
tried to reset and system and still no sound..
does the radio have a ddiffent connection to the speakses?
Thnx.

Are you able to hear MP3 music stored on SD/USB or internal memory?
Is the FM receiver set to the right market? There are differences between the states. You need to check in the system settings of your unit.
Do you hear at least white noise? If you don´t hear anything and the FM receiver does not find a station, the FM receiver seems to be broken. Can mostly be exchanged if you are able to solder. Depends on the unit.
...but related to the age of this unit, I would not recommend that.

rigattoni said:
Are you able to hear MP3 music stored on SD/USB or internal memory?
Is the FM receiver set to the right market? There are differences between the states. You need to check in the system settings of your unit.
Do you hear at least white noise? If you don´t hear anything and the FM receiver does not find a station, the FM receiver seems to be broken. Can mostly be exchanged if you are able to solder. Depends on the unit.
...but related to the age of this unit, I would not recommend that.
Click to expand...
Click to collapse
Thank you. it doesnt show the stations names. I do hear mp3 sound and internal sound and I dont think I heae white sound. Is there a way to check the FM reciver - i dont hear AM sound as well....

yosiba said:
Thank you. it doesnt show the stations names. I do hear mp3 sound and internal sound and I dont think I heae white sound. Is there a way to check the FM reciver - i dont hear AM sound as well....
Click to expand...
Click to collapse
Station names is something different and is related to bad FM reception.
Well you are talking about VW. So I expect that your car has at least 3 antennas. One in the back window and one in each side window.
You most probably did not connect the antenna correctly. I don´t think that the receiver is broken.
Seems that you need some professional help to get this working with your setup.

rigattoni said:
Station names is something different and is related to bad FM reception.
Well you are talking about VW. So I expect that your car has at least 3 antennas. One in the back window and one in each side window.
You most probably did not connect the antenna correctly. I don´t think that the receiver is broken.
Seems that you need some professional help to get this working with your setup.
Click to expand...
Click to collapse
ok. it was in the long repair maybe they didnt connect. I dont find manual for this and thnx,

yosiba said:
ok. it was in the long repair maybe they didnt connect. I dont find manual for this and thnx,
Click to expand...
Click to collapse
With VW cars (and all others of the VW family) we are talking about Antenna-Diversity.
That means that a control-unit in the back of your car is checking all available antennas for the best reception and routes only this antenna to your radio.
You will find the control unit behind the right plastic panel in the trunk of the car.... at least mostly.
Antenna-Diversity is not really usable for any known-to-me aftermarket head units.
You need to check now:
Pull out the radio and check the antenna cable from the car.
Do you see a double FAKRA connector on car side?
Do you see only 1 single FAKRA connector on car side?
Is there a phantom power adapter between the radio and the car FAKRA connector, with a +12V connector?
In case you are struggling with that... Just pull out the radio and provide some photos where we can see the cable and the cable colors of the connectors.... Do that for all the cable tree connected to your radio.

hi all
got it working just bu plugging a USB cable and it works as antenna....
thank you all!!

yosiba said:
hi all
got it working just bu plugging a USB cable and it works as antenna....
thank you all!!
Click to expand...
Click to collapse
Well... you should get your antenna working, instead of a workaround with some USB cable. At least I don´t get the connection between FM and USB.