2010 Q7 Prestige TDI, equipped with Bose Audio, Siris, 5 Disk CD, NAV, and Bluetooth

I got a good deal on it from a dealer who didn't want to pay Audi to fix the the radio and a few other issues, yes the dealer disclosed all the issues. So I bought it as is. I have the maintenance records that an Audi dealership fixed the sunroof drain holes which lead to water damage to the amp. They installed a used AMP and took it to Audi for coding. MMI appears to be completely functional, the only two symptoms were no sound and the radio won't tune. Navigation, CD changer, and all MMI menus work fine. The only code that was putting our as follows.

OBDeleven data log
Date: 2022-02-01 08:47
VIN: WA1VMAFE1AD003237
Car: Audi Q7
Year: 2010
Body type: SUV
Engine: CATA
Mileage: 128220 KM

---------------------------------------------------------------
56 Radio

System description: Radio U SIRIU
Software number: 4G0035082H
Software version: 0138
Hardware number: 4G0035082
Hardware version: H60
Serial number: 156D$0E7994013
Long coding: 020007010000000001

Trouble codes:
00417 - Left front DSP mid-bass speaker Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55
00418 - Right front DSP mid-bass speaker Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55
02558 - Left rear mid-bass speaker Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55
02559 - Right rear mid-bass speaker Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55
02246 - Speaker in center Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55
03405 - Bass speaker Open circuit
static
Priority: 5
Frequency counter: 1
Driving cycle: 192
Mileage: 127919 km
Date: 2022-01-30 19:13:55


After getting into the garage and pulling panels. Checked all the fuses no issue there. Pulled connections on Radio module and amp. Firmly re-fitted connections, I believe it's possible that one of them was unplugged on the Radio module. Cleared the codes. Suddenly everything worked fine to include all of these speakers so I don't think the component protection is an issue, at least according to my understanding of component protection. The only issue at this point is the radio will not tune. I'm wondering if the dealership put a used radio control module from a different model or year that didn't work quite the same as my Q7's.
My second thought is Maybe it has a bad ground in the control module, or a slight amount of water damage since it is located under the amp or the wiring going out to the speakers is causing it to go in and out.

My primary questions for the community: .
What is your long code numbers for the Radio control unit?
Those of you who have a Q7 with similar options what is your radio control model number to include the letter designator following the number? The radio module currently installed is 4G035082G. The Audi parts site says I need to have 4F0035053BX. The only ones available on Ebay are $300 to $400 and ship from Lithuania.
What other radio control unit model numbers can I use?

 

Yeah, a quick search on that radio part # 4G035082G shows it matches up to a '15-'16 model Q3, so I think you found your issue/answer. As to all the other fault codes, when you remove the amp/head unit, etc. from car, everything connected to it freaks out and throws codes; in this case all the speakers, etc. Clearing codes after you remove/reconnect anything on this car is mandatory. Search around a bit for good deal on the correct radio head...it'll be worth few hundred bucks, or you can try to get one from a recycler/wrecking yard, etc. I'd also try to see if seller or whoever put that in car will work with you to get correct item for it.

The alternative, of course, is to install a Carplay kit and just stream whatever you want through the Aux input Carplay uses.

 

Ok I don't know how these radios work in our Q7's . I am sure they are no way near like our radios of the old days but that being said I would say maybe Antenna? These things still must have an antenna of some sorts. Just a thought.


Bruce