Very specific issue with an uncommon MIB unit swap and ZDC files

[ViperSlider]

From what I have seen, all the solutions I have found don't apply specifically to when using an 877/877A unit. I am far from a stranger with using VCP and alike but with how specific this scenario is, I have hit a wall (not literally of course)...

This information is specifically for my UK RHD ST so if you need it for SC or hatchback I believe you need SE370 and if LHD then DATA without RHD.

I've replaced my MIB unit from 5QA 035 858A with 5F0 035 877A but I wasn't sure which ZDC file to upload for my Seat Sound. Seat Sound wasn't available when the 877A unit came from the factory so the VCP ZDC files for 877/877A do not include Seat Sound parameters, how awkward lol! The car is a Sportstourer Estate (ST) with factory Seat Sound.

Everything else worked perfectly and all FEC activations were restored via ODIS so I have Full Link, Nav etc all up and running but as the unit is not for my car ODIS does not load the parameters for the sound settings. I've read that parameters from an older unit work fine but so far all the ones I've tried either didn't sound right or wouldn't load at all.

However, I have had some limited success using data sets for 5QA 035 824. The 3 I have successfully loaded are:

DATA_ASAM_ODX_MUX_V01_TSAT_6C3_001

DATA_Audio_Parameters_Sound_V01_SE373_MIB2_6C3_RHD

DATA_Audio_Parameters_Sound_Configuration_V01_MIB2_6C3

The original data set in 877A was EV_MUStd6C1TSAT. and with the above changes it is now EV_MUStd6C3TSAT, which is the same as my old 858A unit. The sound is great again but the sub is very very quiet!

In my testing of different parameters, I had turned the sub up in the sound settings menu on the radio screen, could that have caused issues with the parameters loading why my sub is quiet?

 

[Walone]

I'm interested to know what Data sets are loaded on my 2016MY ST (RHD), as my car didn't have Seat Sound from factory, but after I had some 'mods' done to my MIB2 High unit I noticed that I had the Subwoofer option in the sound menu, also when I did a scan with VCDS I had some speaker errors, anyway I decided to fit the sub and centre speaker and alter the speaker wiring to suit, with a couple of changes to coding and my speaker errors went away and the sound is very good, can I use VCDS to see what data sets are loaded?

 

[ViperSlider]

VCDS can show you the main dataset type you have (such as EV_MUStd6C3TSAT) in an autoscan or in the module info but not the deeper details sadly

 

[MartinThorn]

Not sure if this is of any use but it got my SeatSound back after changing my head unit.

VCP is not needed for seat sound.

i have managed to apply seat sound to a mib2 technisat unit with just the use of carscanner app pro. i stumbled on this thread which gave hope without having to get vcp and zdc files like i did with my first mib2 unit. https://www.audi-sport.net/xf/threads/436166/ however why go to the...

www.seatcupra.net

Need the Car Scanner Pro Android app* (https://www.carscanner.info/) and a generic OBD2 wi-fi dongle (I have a kunfuren one)

*The app is really cheap and worth getting anyway - has plenty of features and also reads/clears my Alfa's error codes which was an unexpected bonus.

My car is also a SportsTourer that came with factory SeatSound (2014 FR 184).