MIB2.5 Retrofit Sound Problem / Quality

[tobes90]

I’ve just had the Discover Pro MIB2.5 retro-fitted to my 2016 Golf GTD. It has been coded so that everything works fine with the car but the sound quality is notably quieter and worse than my Discover Media that was originally in the car.

I also have an aftermarket (Vibe) subwoofer installed in the boot, again this worked fine with the original system but now I’ve had the retro-fit done it seems to barely pick up any signals of sound and only plays certain low frequencies of bass. The sub is working fine as I've had it checked.

Original Discover Media part number – 3Q0035874A
New MIB2.5 part number – 5NA035020D

I don’t know if the MIB2.5 needs the coding changed or something and I don’t have any coding facilities myself. Can anyone help please?

Cheers

 

[Adurm]

Your original was nav with fender audio and amp? If so, are you using the MOST optic connection to feed the factory amp?

 

[tobes90]

It just came with normal sound system, not the Dynaudio etc. I think the sub was wired into the back left speaker and then there is a box under the glove compartment which goes into the back of the head unit I think. I've not messed with any of the wiring and it seemed to work fine before with the Discover Media.

Which is the most optic feed for it?

Apologies but I'm not massively mechanical or technical!

 

[Adurm]

The optical is the one in the middle of the back of the glove box unit. It supplies signal to the factory fender amp. It's not applicable at this point for you.

I would rewire the sub with signal from both rears or both front speakers from the back of the glovebox unit. Currently you're only getting one channel. Bass is omnidirectional but i think you're missing music with your setup.

Also the mib2.5 might be outputting lower voltage than the mib2 which i measured at around 9v with a 0db 1000hz sine wave. Maybe the newer model speakers have higher sensitivity to account for lower power driving them.

 

[Adurm]

Another thought...maybe the wiring isn't the same feeding the brains. Like pos and neg are reversed.

 

[R man]

Hey Adurm, Is there an easy switch out for the fender speakers and amp. The Dynaudio in my other Golf R is so much better, that it is distressing.

 

[Adurm]

Hey Adurm, Is there an easy switch out for the fender speakers and amp. The Dynaudio in my other Golf R is so much better, that it is distressing.

I don't know about easy, but people are doing a helix sub upgrade but can't imagine how good it really is. Audison sells a golf 7 prima kit with a dsp amp and front door drivers. They re use the tweets probably due to difficulty to access them. I think there are other dsp units out there that accept the most 150 cable as optical via converter wire. Or just change out the front speakers with something with better sensitivity. It boils down to your budget and your goals.

 

[Cuzoe]

The Helix system is the easiest upgrade path, although you may have an underlying issue that needs to be resolved. If you go Helix... the sub, although a welcome addition coming from stock audio, is not the impressive part of the setup. You also get the Helix DSP/amp with programming specific to the car plus the benefits of more power. That's the impressive part of the system.

The Helix system can be used with your own sub, which is likely to outperform the one that comes with it. I am running the Helix DSP/amp to drive my speakers while using its subwoofer out to feed my own amp/sub.

 

[zvonexp]

you can fix ur sound problem with vcp.. new parameterization only

 

[tobes90]

This is the current scan, not sure if it sheds any light? Any help apricated

Address 19: CAN Gateway (J533) Labels

5Q0-907-530-V1.clb
Part No SW: 5Q0 907 530 AJ HW: 5Q0 907 530 F
Component: GW MQB High 128 1244
Revision: -------- Serial number: 0004366095
Coding: 030100041F087300FB00027E1D0F0001000105000000000000 0000000000
Shop #: WSC 131071 1023 2097151
ASAM Dataset: EV_GatewLear 013020
ROD: EV_GatewLear_013.rod
VCID: 79BA0FFAF8468787E0-802C


Alternator:


Multi Function Steering Wheel Control Module:
Subsystem 2 - Part No SW: 5G0 959 442 N HW: 5G0 959 442 N Labels: 3C8-959-537.CLB
Component: E221__MFL-DC1 H11 0040
Serial number: 29150002507410025521
Coding: 2DFFFF


Battery Monitoring Control Module:
Subsystem 3 - Part No SW: 5Q0 915 181 G HW: 5Q0 915 181 G
Component: J367-BDMHella H04 8050
Serial number: 8579118603


2 Faults Found:
66052 - Infotainment CAN Bus (SAE Bus E)
U0065 00 [008] - Performance
[Globaler Timeout CAN-Infotainment]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 215
Mileage: 128911 km
Date: 2020.02.13
Time: 14:57:55


Supply voltage: Terminal 30: 12.4 V
Terminal 15: OFF


15360512 - Component Protection
U1101 00 [009] - Active
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 153
Mileage: 127833 km
Date: 2020.01.31
Time: 09:59:58


Supply voltage: Terminal 30: 12.2 V
Terminal 15: On

-----------------------------------------------------------------------------------------------------------------------------------------------------------

Address 5F: Information Electr. (J794) Labels:* None
Part No SW: 5NA 035 020 D HW: 5NA 035 020
Component: MU-H-ND-EU H55 1367
Serial number: A845B0JS034120
Coding: 02730001FF00000051111101008808101F0102C601200500FF
Shop #: WSC 12345 123 12345
ASAM Dataset: EV_MUHig4CGen2HBAS 001001
ROD: EV_MUHig4CGen2HBAS_VW37.rod
VCID: 3228F8D665B0B4DF61-8066


Operating And Display Unit 1:
Subsystem 1 - Part No SW: 5G6 919 606 HW: 5G6 919 606
Component: ABT_High-2 H52 9130
Serial number: VWZ6ZJV1901385


Data medium:
Subsystem 2 - Part No SW: V03 959 800 QS HW: -----------
Component: ECE 2018 --- 0166
Serial number: --------------------


Compact Disc Database:
Subsystem 3 - Part No SW: V03 959 800 EG HW: -----------
Component: Gracenote2 --- 1017
Serial number: --------------------


2 Faults Found:
1543 - Control Module Incorrectly Coded
U1014 00 [009] - -
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 175
Mileage: 128911 km
Date: 2020.02.13
Time: 15:40:51


Voltage terminal 30: 12.1 V
Byte_Coding_Condition-byte_0_condition: OK
Byte_Coding_Condition-byte_1_condition: OK
Byte_Coding_Condition-byte_10_condition: ERROR
Byte_Coding_Condition-byte_11_condition: ERROR
Byte_Coding_Condition-byte_12_condition: ERROR
Byte_Coding_Condition-byte_13_condition: ERROR
Byte_Coding_Condition-byte_14_condition: ERROR
Byte_Coding_Condition-byte_15_condition: ERROR
Byte_Coding_Condition-byte_16_condition: ERROR
Byte_Coding_Condition-byte_17_condition: ERROR
Byte_Coding_Condition-byte_18_condition: ERROR
Byte_Coding_Condition-byte_19_condition: ERROR
Byte_Coding_Condition-byte_2_condition: OK
Byte_Coding_Condition-byte_20_condition: ERROR
Byte_Coding_Condition-byte_21_condition: ERROR
Byte_Coding_Condition-byte_22_condition: ERROR
Byte_Coding_Condition-byte_23_condition: ERROR
Byte_Coding_Condition-byte_24_condition: ERROR
Byte_Coding_Condition-byte_25_condition: ERROR
Byte_Coding_Condition-byte_26_condition: ERROR
Byte_Coding_Condition-byte_27_condition: ERROR
Byte_Coding_Condition-byte_3_condition: OK
Byte_Coding_Condition-byte_4_condition: OK
Byte_Coding_Condition-byte_5_condition: OK
Byte_Coding_Condition-byte_6_condition: OK
Byte_Coding_Condition-byte_7_condition: OK
Byte_Coding_Condition-byte_8_condition: OK
Byte_Coding_Condition-byte_9_condition: OK


15360768 - Component Protection
U1101 00 [009] - Active
[Anti-theft protection - component protection active (0xEA6300)]
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 175
Mileage: 128911 km
Date: 2020.02.13
Time: 15:40:51


Voltage terminal 30: 12.1 V

 

[tobes90]

Does anyone in the Manchester / north west have VAG CAN Pro? I need to get my speaker parameters adjusted

Any help or recommendations appreciated

Cheers
Tobes

 

[zvonexp]

Text me.. i have number of one friend who can help u.. he's near u

 

[shimi]

Does anyone in the Manchester / north west have VAG CAN Pro? I need to get my speaker parameters adjusted

Any help or recommendations appreciated

Cheers
Tobes

Hi tobes,
I have problem after retrofit from mib2 to mib2.5
Have you solved this problem?

 

[FlorentDB]

Just did this retrofit without Copilot beacuse i allready have it, so i just did the MIB and screen upgrade and got the same problem with standard speakers.. anyone managed to fix it?

 

[Matthewstage]

Hello people, Any solutions? Another with retrofit of 5na mib2.5 and same audio problem…i don’t know what to do…anyone have the pinout scheme or something relationed with the parameters?
This problem disturb me a lot for 1 year and no solutions….