Faults after aftermarket head unit installation

[RBRayan]

Recently installed an android head unit into my mk6 golf and everything works fine however I have received a couple faults to do with the phone and gateway. I’m new to all this but here’s what came up in the OBD II scan:
OBDeleven vehicle history log
Date: 2024-07-10 17:26:23

VIN:
Car: Volkswagen
Year: 2013
Body type: D5 Hatchback
Engine: CAXA kW ( hp) l
Mileage: 119090 km

---------------------------------------------------------------
Full scan
Control Units: 16
Fault count: 5
Control Units:
01 Engine
System description: MED17.5.5 G
Software number: 03C906016AJ
Software version: 9458
Hardware number: 03C907309A

Faults:
No trouble codes found

02 Transmission
System description: GSG DSG AG7 431
Software number: 0AM300054L
Software version: 3630
Hardware number: 0AM927769D
Hardware version: D20

Faults:
No trouble codes found

16 Steering Column
System description: Lenks.Modul
Software number: 5K0953507AH
Software version: 0080
Hardware number: 5K0953549B
Hardware version: 008

Faults:
No trouble codes found

03 Brakes
System description: ESP MK60EC1
Software number: 1K0907379BL
Software version: 0152
Hardware number: 1K0907379BL
Hardware version: H31

Faults:
No trouble codes found

17 Dashboard
System description: KOMBI
Software number: 5K0920973
Software version: 0705
Hardware number: 5K0920973
Hardware version: H05

Faults:
No trouble codes found

08 Air Conditioning
System description: AC Manuell
Software number: 7N0907426BG
Software version: 0505
Hardware number: 7N0907426BG
Hardware version: H20

Faults:
No trouble codes found

10 Parking Assistance
System description: PARKHILFE 8K
Software number: 5K0919475E
Software version: 0012
Hardware number: 5K0919475E
Hardware version: H01

Faults:
No trouble codes found

15 Airbag
System description: AirbagVW10
Software number: 5C0959655B
Software version: 0613
Hardware number: 5C0959655B
Hardware version: 013

Faults:
No trouble codes found

44 Steering Assistance
System description: EPS_ZFLS Kl. 69
Software number: 1K0909144P
Software version: 3305

Faults:
No trouble codes found

52 Passenger Door
System description: Tuer-SG 009
Software number: 5K0959702J
Software version: 2106
Hardware number: 5K0959702J

Faults:
No trouble codes found

62 Rear Left Door
System description: Tuer-SG 007
Software number: 5K0959703D
Software version: 2101
Hardware number: 5K0959703D

Faults:
No trouble codes found

25 Immobilizer
System description: IMMO
Software number: 5K0953234
Software version: 0705
Hardware number: 5K0953234
Hardware version: H05

Faults:
No trouble codes found

42 Driver Door
System description: Tuer-SG 009
Software number: 5K0959701H
Software version: 2106
Hardware number: 5K0959701H

Faults:
No trouble codes found

72 Rear Right Door
System description: Tuer-SG 007
Software number: 5K0959704D
Software version: 2101
Hardware number: 5K0959704D

Faults:
No trouble codes found

19 Gateway
System description: J533 Gateway
Software number: 7N0907530R
Software version: 1632
Hardware number: 7N0907530H
Hardware version: H42

Faults:
01304 - Radio
Intermittent


01044 - Control module incorrectly coded
static


03272 - External audio source connection
static



77 Telephone
System description: TELEFON
Software number: 7P6035730J
Software version: 3200
Hardware number: 7P6035730J
Hardware version: H15

Faults:
B104F13 - Left audio channel for speech/telephone
Open circuit
static


B104E13 - Right audio channel for speech/telephone
Open circuit
static

 

[gijoewoz]

What head unit, and what wiring/accessories did you install? Did you install a new microphone?

 

[RBRayan]

What head unit, and what wiring/accessories did you install? Did you install a new microphone?

It was a standard android head unit with a built in microphone.

 

[gijoewoz]

There is no such thing as a “standard” android head unit, there are dozens of them. Do you have a brand and model number? Does everything work correctly as far as phone calls, carplay/android auto?

 

[RBRayan]

There is no such thing as a “standard” android head unit, there are dozens of them. Do you have a brand and model number? Does everything work correctly as far as phone calls, carplay/android auto?

9 Inch Car Radio For VW Passat... https://www.amazon.co.uk/dp/B0D3WYGSR7?ref=ppx_pop_mob_ap_share

That’s the head unit I’ve brought. Everything else works perfectly fine

 

[gijoewoz]

My best guess without seeing the install is that since you’re using the built in mic, the OEM mic is disconnected and showing an open circuit.

 

[RBRayan]

My best guess without seeing the install is that since you’re using the built in mic, the OEM mic is disconnected and showing an open circuit.

Appreciate the replies gijoewoz, would you know where the mic wiring is located or how I could code it in or something?