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Subwoofer control for Audi A3 8V Facelift MHS2
24-01-2023, 11:44 AM,
Post: #1
Subwoofer control for Audi A3 8V Facelift MHS2
HI all


2019 Audi A3 8v with MHS2_ER_AU_P2035_MU0235
Part: 81A035192E
It has Audi Sound System from factory with sub in boot.

spoile
Any way to activate the subwoofer on the MMI?
 have already tried coding SOUND_SYSTEM_INTERNAL_INDIVIDUAL but it comes back with coding error fault.
Do I need a new parameter file?

Does anyone have the parameters xml to enable the subwoofer control for this 2019 unit please?

Thanks!
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25-01-2023, 11:15 AM, (This post was last modified: 25-01-2023, 11:23 AM by PopDog.)
Post: #2
RE: Subwoofer control for Audi A3 8V Facelift MHS2
Only with changing Datasets in Parameter. It is a little hard, and you need 010 Editor Programm and the Dataset from somewhere. In his Github Repo is also a zdc2bin Script - but normaly vcp zdc is crypted

Here is first Information in attachment with Template for Editor Information (Link1)

In Comments there was also this:
Quote:Hi Alex, thanks very much for this write up. Were you able to enable the 9VD subwoofer control in the end?

I am trying to do the same for a retrofit, I have managed to enable the outputs and other menu options by editing 0x003000 and 0x003B00 but still no subwoofer menu on the MMI. I don't have VCP so am editing and writing the parameter sets manually.

I was wondering if other addresses needed to be adjusted or if you could share an example parameter set for 5f I could compare against?

Thanks again


Alex Strelets Oli
5 months ago
Hi Oli.

Two steps are required to enable it:

1. Edit 3B00 data to add plus-minus range for the subwoofer knob
2. Edit 3000 data to set max gain for the subwoofer (1 byte only)

Link2 is Github where he stores the Templates for 010 Editor and some dataset parts

You can Download 010 Editor from Sweetscape

you can Write pm i have 1 free license Place left.


Attached Files
links.txt
File Type: .txt
Downloaded: 21 times
Size: 123 bytes


If my answer helped to fix anything, then don't forget to give me some rep please! 
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[+] 2 users say Thank You to PopDog for this post
26-01-2023, 09:17 AM,
Post: #3
RE: Subwoofer control for Audi A3 8V Facelift MHS2
Thanks for the reply, yes already read those links before you posted them

Very useful.

Used CarScanner app to read 5F dataset 0x3000 and 0x3B00
Updated the dataset with sub gain and sub range.
Recalculated checksums.
Uploaded datasets.
Done !

VCP/ODIS etc no good for this job!
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26-01-2023, 10:13 AM, (This post was last modified: 26-01-2023, 10:35 AM by vierchatura.)
Post: #4
RE: Subwoofer control for Audi A3 8V Facelift MHS2
"Used CarScanner app to read 5F dataset 0x3000 and 0x3B00"

Found on Google and works with ELM
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26-01-2023, 12:26 PM,
Post: #5
RE: Subwoofer control for Audi A3 8V Facelift MHS2
Easy, done it inmy freinds car 2 years ago


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