Good stuff! Looks like you used Tesa tape too!
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How to add a good Alpine 6 CD changer to your Becker 1432 without rewiring ANYTHING
- Thread starter Dbreid
- Start date
Only the best over hereGood stuff! Looks like you used Tesa tape too!
I would absolutely love if you could look at them, I hit a wall and have not been able to go any further with this project unfortunately.
IT FKN WORKS!!!! The MX3192 that was broken, had corrosion, and a blown fuse…I replaced a resistor, the fuse, cleaned the corrosion, and bypassed a bad trace…plugged it in while the radio was on and it IMMEDIATELY worked!
I’m ecstatic! Fk yeah I love this!
I’m ecstatic! Fk yeah I love this!
That is great to hear!
That tiny surface mount 100 ohm resistor gave up the ghost, luckily I had two left in my parts bin.
The trace shorted for one of the pins on the connector, so I jumped it with a wire loop since I had a solid point on either side.
Replaced the fuse, reflowed some joints, and that was it.
Can’t believe it works after all that, such a great feeling to not have the cassette adapter in the console anymore. Plus the matching CD player I bought works great too, kinda want to figure out a bracket so I can go back and forth if I want to.
The trace shorted for one of the pins on the connector, so I jumped it with a wire loop since I had a solid point on either side.
Replaced the fuse, reflowed some joints, and that was it.
Can’t believe it works after all that, such a great feeling to not have the cassette adapter in the console anymore. Plus the matching CD player I bought works great too, kinda want to figure out a bracket so I can go back and forth if I want to.
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That's fantastic, and great that you were able to find the problems with the unit! I had an MX3192 (eBay purchase) show up DOA with a bad main IC (had a VISIBLE crack in the package)
. Now I understand why these units are getting to be SO incredibly hard to find... I'll bet they get blown up left and right from someone attempting to wire them in!Attachments
Yep, I have one that is apparently a brick. I couldn’t see anything wrong with it, so maybe the Alpine chip is to blame. I’ll still keep looking for someone that can repair it since it’s beyond my skill set.That's fantastic, and great that you were able to find the problems with the unit! I had an MX3192 (eBay purchase) show up DOA with a bad main IC (had a VISIBLE crack in the package)
Good day!
I have been able to put my system together from all the info on this chat. Thank You all.
Here is my story ... I bought a 1985 500sel, and since it did not come with the original radio, I started a hunt for one. I realized that there were different flavors of sound systems, mine seemed to be a plain radio with 2 amplified (high level) outputs that went to the fader control in the console to be split in 4.
I went and found enough info to aim for a be1432 that could also support a CD player. So, I first bought a radio that came with a code. from there i sourced a tuner (which worked for 1/2 a day). Then looking for the mx3192 found someone that had the whole cd changer and module.
The tuner had no sound and even when it worked for half a day, one channel was lower than the other. I fixed it by replacing about 6 capacitors and 1 transistor.
The cd changer worked, but the module mx3192 was sending the cd audio a little garbled. I fixed it by replacing a regulator on the board.
From there i decided to put an old alpine cha-s634 changer because that one could play mp3 as well as regular cd's. It is an ainet wired changer, but it is compatible with m-bus with the flip of a switch. So i bought the ainet to m-bus adapter KCA-130B. From there i made my 8 din adapter with the info from this forum.
BTW when i opened the mx3192 module, i was able to identify more information on the pinout that i will be sharing soon.
After that i bought a P.I.E. ALP/AI-AUX auxiliary switcher, and a bluetooth receiver from amazon.
Now i do not have to give up the original tape player capability. if i want to play music from my phone, i play a cd, and when the PIE detects the signal from the bluetooth wires, it disconnects the audio from the cd player and streams the audio. when i disconnect the bluetooth, it kicks back to playing the cd. Which i believe is awesome.
Have not yet purchased the speakers or amps. but I am inclined to use the low level output from my tuner go trough the fader (which may or may not work if was made for hi level instead of low level audio, i could probably change the variable resistor), then to a kenwood 5 channel amplifier, to achieve a have full range speakers on the back of the car, sub woofer on the rear doors, speakers on the dashboard.
Hope this helps in anyway. and if you have a mx3192 that does not have a cracked alpine chip. I might be able to help. Let me know.
I have been able to put my system together from all the info on this chat. Thank You all.
Here is my story ... I bought a 1985 500sel, and since it did not come with the original radio, I started a hunt for one. I realized that there were different flavors of sound systems, mine seemed to be a plain radio with 2 amplified (high level) outputs that went to the fader control in the console to be split in 4.
I went and found enough info to aim for a be1432 that could also support a CD player. So, I first bought a radio that came with a code. from there i sourced a tuner (which worked for 1/2 a day). Then looking for the mx3192 found someone that had the whole cd changer and module.
The tuner had no sound and even when it worked for half a day, one channel was lower than the other. I fixed it by replacing about 6 capacitors and 1 transistor.
The cd changer worked, but the module mx3192 was sending the cd audio a little garbled. I fixed it by replacing a regulator on the board.
From there i decided to put an old alpine cha-s634 changer because that one could play mp3 as well as regular cd's. It is an ainet wired changer, but it is compatible with m-bus with the flip of a switch. So i bought the ainet to m-bus adapter KCA-130B. From there i made my 8 din adapter with the info from this forum.
BTW when i opened the mx3192 module, i was able to identify more information on the pinout that i will be sharing soon.
After that i bought a P.I.E. ALP/AI-AUX auxiliary switcher, and a bluetooth receiver from amazon.
Now i do not have to give up the original tape player capability. if i want to play music from my phone, i play a cd, and when the PIE detects the signal from the bluetooth wires, it disconnects the audio from the cd player and streams the audio. when i disconnect the bluetooth, it kicks back to playing the cd. Which i believe is awesome.
Have not yet purchased the speakers or amps. but I am inclined to use the low level output from my tuner go trough the fader (which may or may not work if was made for hi level instead of low level audio, i could probably change the variable resistor), then to a kenwood 5 channel amplifier, to achieve a have full range speakers on the back of the car, sub woofer on the rear doors, speakers on the dashboard.
Hope this helps in anyway. and if you have a mx3192 that does not have a cracked alpine chip. I might be able to help. Let me know.
hello, my fate is sad and tragic
I am the owner of a Mercedes and an electronics engineer, and I bought a radio Becker Grand Prix 2000, BE1319, it is known that, just like Mexico 2000, it works with the same CDС.
I don't have any of the original CDC options, but I have a desire to build an emulator
so first I identified the connector pinout (I didn't find the service manual forBE1319)
A and B are RS485 bus, I sniffed the signal with a signal analyzer and found the following things:
1 its UART 4800 8E2 (4800 baud, 8 data bits, even parity, 2 stop bits)
2 head unit sends two slightly different ping-packets, once every five seconds сontinuously after power on
obviously only two bytes change, one of them is the address of the second device, and the second is probably the CRC
assuming that the CRC is considered fairly trivial, I was able to select the necessary parameters to calculate the checksum. it's a CRC with a 0x01 polynomial and 0xFF initial value.
then I accidentally discovered that such CDCs were also installed in BMW, Bavaria C Professional Becker BE1801, there were also the same problems with CDC Becker as described in the first post, but BMW bought CDC Pioner, not Alpine
Unfortunately or fortunately, this did not help me too much in creating an emulator, however, I found someone who was going down the same path with BMW, and our results matched (I'm not mad, yay!). this gave me more understanding, however I still could not implement ping pong communication, since apparently Becker MB and Becker BMW have different addresses in the protocols.
so I need help in sniffing from people who have the original CDC, this does not require deep knowledge, you need USB-TTL or USB-RS485 (CP2102, CH340, CH341, ft232rl and etc), I will do the software part via remote access, if you have the opportunity, please contact me
I am the owner of a Mercedes and an electronics engineer, and I bought a radio Becker Grand Prix 2000, BE1319, it is known that, just like Mexico 2000, it works with the same CDС.
I don't have any of the original CDC options, but I have a desire to build an emulator
so first I identified the connector pinout (I didn't find the service manual forBE1319)
A and B are RS485 bus, I sniffed the signal with a signal analyzer and found the following things:
1 its UART 4800 8E2 (4800 baud, 8 data bits, even parity, 2 stop bits)
2 head unit sends two slightly different ping-packets, once every five seconds сontinuously after power on
obviously only two bytes change, one of them is the address of the second device, and the second is probably the CRC
assuming that the CRC is considered fairly trivial, I was able to select the necessary parameters to calculate the checksum. it's a CRC with a 0x01 polynomial and 0xFF initial value.
then I accidentally discovered that such CDCs were also installed in BMW, Bavaria C Professional Becker BE1801, there were also the same problems with CDC Becker as described in the first post, but BMW bought CDC Pioner, not Alpine
Unfortunately or fortunately, this did not help me too much in creating an emulator, however, I found someone who was going down the same path with BMW, and our results matched (I'm not mad, yay!). this gave me more understanding, however I still could not implement ping pong communication, since apparently Becker MB and Becker BMW have different addresses in the protocols.
so I need help in sniffing from people who have the original CDC, this does not require deep knowledge, you need USB-TTL or USB-RS485 (CP2102, CH340, CH341, ft232rl and etc), I will do the software part via remote access, if you have the opportunity, please contact me
How can you help me:
1 Connect usb-ttl RX to A (=BUS+) and GND to chassis (inside or outside headunit, this is enough to receive data)
2 Open terminal 1.9b
3 Configure COM port as in pic (4800 8E2, HEX in Receive(!) otherwise the packages will not be parsed)
4 Connect to COM
5 Power on headunit
6 Take a screenshot of the result of communication between devices
1 Connect usb-ttl RX to A (=BUS+) and GND to chassis (inside or outside headunit, this is enough to receive data)
2 Open terminal 1.9b
3 Configure COM port as in pic (4800 8E2, HEX in Receive(!) otherwise the packages will not be parsed)
4 Connect to COM
5 Power on headunit
6 Take a screenshot of the result of communication between devices
LOL! I don't have a CDC but if someone locally has a CDC that they are willing to donate to the cause, I can hook it up and get this for @niz93
MX3192 fits well too)
interested in the dialogue of the head unit and CDC/MX3192
or mexico 2000 without CDC, head and radio units using ping-pong packets for initialization before power up and after constantly exchange data, this will help me find out the addresses of network devices and start communicating with them
interested in the dialogue of the head unit and CDC/MX3192
or mexico 2000 without CDC, head and radio units using ping-pong packets for initialization before power up and after constantly exchange data, this will help me find out the addresses of network devices and start communicating with them
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i bought non work CDC BE982 for BMW, it doesn't read CD's, but he is determined by his head and communicates, changes disks and Mexico 2000 for BMW
I still think there is a difference in BMW and Mercedes protocols (!) as a radio kit for BMW, and with my Mercedes Becker Grand Prix 2000 radio it did not work (!) therefore, the results presented below may not be applicable to Mercedes
I sniffed the communication protocol in different possible modes and got some results, you can study in more detail in the archive in particular "CDC to Head command"
I was able to communicate with my head by forcing the amplifier to be activated in CD mode, for this I used usb-rs485 and PComm Terminal Emulator
example:
1 send insert CD info
FC1032032C23FF2E0F LOAD или CD (all 10 CD insert) //transmits information about the number of discs in the store
2 press the button 1 (or another number) on head (head will show LOAD *number* or send LOAD command
FC1032072B010000000001F10F LOAD 1
3 send CD info command
FC1032072BB10000000001410F CD 1
after this the head will consider that it is working with СD 1, repeating steps 2 and 3 with other numbers you can change the disk numbers
Still need help sniffing the Mexico 2000 protocol, even without the CDC
I still think there is a difference in BMW and Mercedes protocols (!) as a radio kit for BMW, and with my Mercedes Becker Grand Prix 2000 radio it did not work (!) therefore, the results presented below may not be applicable to Mercedes
I sniffed the communication protocol in different possible modes and got some results, you can study in more detail in the archive in particular "CDC to Head command"
I was able to communicate with my head by forcing the amplifier to be activated in CD mode, for this I used usb-rs485 and PComm Terminal Emulator
example:
1 send insert CD info
FC1032032C23FF2E0F LOAD или CD (all 10 CD insert) //transmits information about the number of discs in the store
2 press the button 1 (or another number) on head (head will show LOAD *number* or send LOAD command
FC1032072B010000000001F10F LOAD 1
3 send CD info command
FC1032072BB10000000001410F CD 1
after this the head will consider that it is working with СD 1, repeating steps 2 and 3 with other numbers you can change the disk numbers
Still need help sniffing the Mexico 2000 protocol, even without the CDC
UPD this is not true, the protocols are identical
GP 2000 also got in communication, its UART track was damaged
help is no longer required, only if testing a finished device)
Looking forward to your Arduino results with interest!
Having just had the 1432 radio in my 500E rebuilt, are tehre any updates to this thread, specifically in fitting a modern Alpine CD changer to the original 1432 radio? I would enjoy having the ability to play CDs and still have the original radio in the car. TIS for any suggestions.
The original postulation in this thread still stands! Use the MX3192 with the right cables, the BE1432, and the Alpine CHM-S620/630 and it works!
Thank you! That will be the next project, after I get the dash cluster back into the car, then. Much obliged!!!
Very neat! did you build bluetooth into your emulator? The buttons for forward/backward is neat! If you sell these, I'd buy one!
yes, this csr chip in prototype and qcc3008 in product version
After packing in a box I will sell it, shipping abroad is now difficult, but I have shipping methods)
Also, the source code and hardware will be posted on GitHub, in case someone implements something more interesting based on this project
I'd like to go down the path of the MX3192 with the Yatour converter but it seems vry hard to find the right cables. All of the MX3192 i can find for sale do NOT include the 2 DIN cables that plug into the top of the device.
Also I cannot find this PIE alpine CD changer harness anywhere. Ebay or otherwise
www.crutchfield.com
Seems like the main bottleneck here is lack of cables/harnesses..
Also I cannot find this PIE alpine CD changer harness anywhere. Ebay or otherwise
P.I.E. Mercedes-Benz CD Changer Adapter MBZ/E-ALP
Model MBZ/E-ALP Connect an Alpine CD changer to select 1991-1993 Mercedes-Benz vehicles
www.crutchfield.com
Seems like the main bottleneck here is lack of cables/harnesses..
Yep, starting at around post 110, you can see people got around that by making their own cable.I'd like to go down the path of the MX3192 with the Yatour converter but it seems vry hard to find the right cables. All of the MX3192 i can find for sale do NOT include the 2 DIN cables that plug into the top of the device.
Also I cannot find this PIE alpine CD changer harness anywhere. Ebay or otherwise
P.I.E. Mercedes-Benz CD Changer Adapter MBZ/E-ALP
Model MBZ/E-ALP Connect an Alpine CD changer to select 1991-1993 Mercedes-Benz vehicles
Seems like the main bottleneck here is lack of cables/harnesses..
I have finished developing and testing the emulator
at the moment, the price for the module + cable is $ 100, but it will be a little difficult to pay)
For DIY enthusiasts, the source code and the board design are available on github
github.com/niz93/CDCEMU2000
more information on my Russian blog, sorry)
https://www.drive2.ru/l/674454452324802642/
at the moment, the price for the module + cable is $ 100, but it will be a little difficult to pay)
For DIY enthusiasts, the source code and the board design are available on github
github.com/niz93/CDCEMU2000
more information on my Russian blog, sorry)
https://www.drive2.ru/l/674454452324802642/
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I want this.
Great I’m ready to purchase right away
Awesome~! I would also buy one. Great work man!
Hi
I'm trying to install Yatour YT M06 in my 400E in order to use BT with Becker 1432. I read this topic a few times, bought MX3192, 8 DIN plugs, rectangular Becker plugs and I did the wiring. I couldn't find original MBZ/Alp cable, so I created one on my own, based on pinout attached in previos posts.
Everything seems good, MX3192 is provided with power, 8DIN cables are working (tested with radio, all good), power also goes to Yatour unit (checked with multimeter)- and here's the problem. With everything plugged (I'm testing Yatour with USB memory stick) my radio won't work- after I turn it on the antenna goes up, after a few seconds the display shows error code E3 and then the radio turns off and antenna goes down.
I saw the chart with Becker error codes and I know this is probably some wiring problem/CD changer problem. My car wasn't originally equipped with changer, so I bougt an Alpine S620 to check if it'll chamge anything. Unfortunatelly, with S620 changer the problem stays the same. If I plug only original 8DIN cable to MX3192 (the one comes from Becker head unit to tuner in the trunk) the display shows E2 code. I also unplugged the battery for 15 minutes before wiring everything again- same problem.
Any suggestions what could I did wrong? The only two things I can think of are broken MX3192 or incorrectly prepared MBZ/Alp cable...
I'm trying to install Yatour YT M06 in my 400E in order to use BT with Becker 1432. I read this topic a few times, bought MX3192, 8 DIN plugs, rectangular Becker plugs and I did the wiring. I couldn't find original MBZ/Alp cable, so I created one on my own, based on pinout attached in previos posts.
Everything seems good, MX3192 is provided with power, 8DIN cables are working (tested with radio, all good), power also goes to Yatour unit (checked with multimeter)- and here's the problem. With everything plugged (I'm testing Yatour with USB memory stick) my radio won't work- after I turn it on the antenna goes up, after a few seconds the display shows error code E3 and then the radio turns off and antenna goes down.
I saw the chart with Becker error codes and I know this is probably some wiring problem/CD changer problem. My car wasn't originally equipped with changer, so I bougt an Alpine S620 to check if it'll chamge anything. Unfortunatelly, with S620 changer the problem stays the same. If I plug only original 8DIN cable to MX3192 (the one comes from Becker head unit to tuner in the trunk) the display shows E2 code. I also unplugged the battery for 15 minutes before wiring everything again- same problem.
Any suggestions what could I did wrong? The only two things I can think of are broken MX3192 or incorrectly prepared MBZ/Alp cable...
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check your cable, orig cabble connected pin to pin: 1 to 1, 2 to 2 and etc.
and on your pic i don't see the tuner being powered
![960[1].jpg](/forums/data/attachments/214/214022-d7141c5037f71b19481edca5a28d7d87.jpg?hash=1xQcUDf3Gx)
Tuner is powered, another rectangular becker plug is blocking the view on the pic. Which cable should I check? Do you mean MBZ/Alp cable, that connects Yatour/cd changer with MX3192? I prepared it due to diagram I found in post #110 and #112. I checked it with multimeter a few times and every connection looks properly.
Long story short:
-OEM white 8DIN cable from Becker1432 goes to Silver Dot female plug on MX3192
-second female plug from MX3192, the one with no dot goes to tuner 8DIN plug, previously connected with Becker 1432
-male 8DIN plug on the cable, that comes from MX3192 is connected with MBZ/Alp cable I made
-second end of MBZ/Alp cable I made is connected with CD changer/Yatour.
-I didn't rewire anything behind the radio or any other place
Could anyone take a picture of their car, how it should be done?
Long story short:
-OEM white 8DIN cable from Becker1432 goes to Silver Dot female plug on MX3192
-second female plug from MX3192, the one with no dot goes to tuner 8DIN plug, previously connected with Becker 1432
-male 8DIN plug on the cable, that comes from MX3192 is connected with MBZ/Alp cable I made
-second end of MBZ/Alp cable I made is connected with CD changer/Yatour.
-I didn't rewire anything behind the radio or any other place
Could anyone take a picture of their car, how it should be done?
disconnect the Yatour completely until you start the system with the converter, I don't understand why you think the problem could be in the Yatour, if inside the box the communication cables are just connected to each other, the box interrupts and switches ONLY the audio signal.
check the cable between the box and the tuner... and it is enough to check only pin 6 and pin 7 for the system to turn on
I think the problem might be in MX3192, not in the Yatour. I checked the 8 DIN cable that connects MX3192 with tuner- its good. I also checked if MX3192 receives power- it does, multimeter shows 12,32V. Further, I checked if power appears on the second plug, that comes out of MX3192- it does. The picture shows how the 8DIN cables are connected to MX3192, white cable comes from Becker 1432 and is connected to female plug with silver dot, the other end of black cable is connected to tuner.
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I'll write it again)
the date is connected directly, all devices are connected to the date in parallel
only the audio signal is interrupted
If the cables are correct, everything will turn on
take the head in your hands and connect it in the trunk through your black unidentified cable to the tuner, if it does not turn on - check the black cable
the date is connected directly, all devices are connected to the date in parallel
only the audio signal is interrupted
If the cables are correct, everything will turn on
take the head in your hands and connect it in the trunk through your black unidentified cable to the tuner, if it does not turn on - check the black cable
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