Reverse Engineering the Sport Sound Module

[Hegi]

Yes I got pin assignment. What do you want to to and what have you run at desk?

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[Medolino]

First, I would install the whole thing in my electrical conversion, and then study exactly how to play custom sounds. I have a power supply and savvycan on my desk, maybe I can make a universal sound module out of it.
First of all I would like to know how to get this to work on the Desk

 

[Hegi]

There you go
Left Module is for legal Sound, Right is for Additional Sound

The Guy from German Tuning company Lautlos Performance told me he can change the Sound via Software without any additional modification.

 

[Medolino]

So far we have can bus connection and a few messages, but how do you get it activated so that a sound output can be heard

 

[Ezikiel37]

Man I have been waiting for this to come to fruition

 

[Hegi]

So far we have can bus connection and a few messages, but how do you get it activated so that a sound output can be heard

IDK
my Approach was to amplify the given sound with an additional amplifier but i just cant find the time to go on

 

[Medolino]

If someone has a log file from their drive with the Taycan, it would make it easier to sort out all the IDs that belong to the sound module

 

[daisy123]

So far we have can bus connection and a few messages, but how do you get it activated so that a sound output can be heard

Hello everyone,
Here is my contribution to the thread.
this is the description of one of the messages (ID: 67C) and we can see that maybe we are interested only in the last signal in that message.
Are those 3 all the messages that are being sent to the module?

 

[Medolino]

Hello everyone,
Here is my contribution to the thread.
this is the description of one of the messages (ID: 67C) and we can see that maybe we are interested only in the last signal in that message.
Are those 3 all the messages that are being sent to the module?

These are 3 signals coming from the control unit
If they had a log file from a trip, they could certainly decipher it exactly

 

[daisy123]

These are 3 signals coming from the control unit
If they had a log file from a trip, they could certainly decipher it exactly

67C is coming from the gateway module - routed from a different device on a different network. But the other two messages can be coming from this module and discord explain why I didn’t found them coming from the gateway to the Module.
And all of those are messages and the signals are in sight of the messages like you see on my screenshot this is one of the messages with multiple signals inside of it.

 

[daisy123]

Hello, any news on the CAN databus decoding? Any logs? I can help decode the CAN messages if I can have any logs

 

[Medolino]

As long as no one here has a log file, this will remain a secret and we cannot work on it any further

 

[daisy123]

I have logging equipment, but not a Taycan anymore :/ I will try to find someone in my area (Bulgaria)

 

[daisy123]

Yes but i can assure you the sound file is not saved in this module.

Where is saved then?

 

[daisy123]

Given the fact that there is only CAN comm to the module, I suspect the audio file it is inside of it (the J1167). The CANBus is not sued for transferring audio/media files, even more given the fact that this is CANH (Can HS Bus) and not the CANFD that is the faster CAN Bus.

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