30

Symphony II+ Upgrade

By
ripcurl
1000

Upgrading from the Symphony II to the Symphony II+ from B7 vehicles is not only aesthetically pleasing, but also allows for an AUX input! Sound quality is better(subjective), but radio frequency quality is lowered.

The Symphony II+ ranges in price from $150 to $300, used. Seen them go for $150 without the four digit radio code, which means you need to goto the dealer to unlock it for $90 bucks. I managed to score mine from ebay for $90 with codes and two scratches... They are un-noticeable to the untrained eye.

You can make your own harness with the following:
Quadlock = $16.99
C Block Connector = $18.73
AUX Jack complete with B Block Connector = $14.99
Antenna adapter = $9.99
approximately $61.00 dollars for the harness.

Some vendors sell complete harness, but I have heard that the pinout were wrong and some modifications were required, hence why I built my own. About 70 dollars for a pre-made harness.

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Nice! - spkr August 9th 2014

Once you have your harness, grab four keys, and jam them in the four slots. I tried for an hour to pull the unit out, but nothing. Left the keys in it, and Ang sat in the car and said whats this? Told her to grab two of them, and at the same time we pulled it out effortlessly. A weird feeling for how hard I was pulling before with no give.

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Its pretty much plug and play if you did it right, punch in the security code and find someone with a VAGcom to code the AUX feature.

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Adding the AUX Port

I added it where the cigarette lighter is.
1-Dremel the back side of the trim where the plastic fin is.
2-measure out the center and start the hole with an exacto. Otherwise your drill bit might wander, which mine did. Use a small drill bit and step up in size.
3-Verify each time you drill, the retaining ring is really small and doesnt cover much of any gap.
4-Test install on work bench. Disassemble it, because you'll have to route the wire in the car.
5-Use a coat hook or something, feed the hook from your shifter area into the back of the dash.
6-Hook and pull the AUX cable through.

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All installed and cleaned up! People think its factory!

Press CD twice to activate the AUX input. Some people reported that pressing and holding the CD button works, but doesnt on mine.

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Programming for AUX

You will 99% likely have to VAGcom your HU to allow the AUX capability. Takes 30 seconds really.

Log into VAG-COM, choosing controller '56 - Radio' and the coding option. The coding scheme of the Symphony II+ is as follows:

Change ? to a 1

0?x0xxx: Options 3 +1 = Analog Input (AUX) +2 = Multifunction Steering Wheel +4 = Telephone

Source: http://wiki.ross-tech.com/index.php/...II_Plus#Coding

More misc information that I didnt not deal with but found:

If your Symphony II+ was not outputting any sound, the second-last value (from the right) is the value that affects whether your sound system employs standard amplification or Bose/external amplification.

After successful coding, clear any fault codes that may be present in the radio. Because of the diversity antenna issue mentioned previously, you will encounter the following fault code that will refuse to clear:

00821 - Antenna 2 for Radio (R93) 011 - Open Circuit

Simply the Symphony II+ is telling us that there is no antenna attached to the ANT2 connector. Disregard the fault.

Source: http://forums.audiworld.com/showthread.php?t=2017312

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CD Service Error Repair

When I got the unit first plugged in the CD Service Error kept coming up... tried ejecting a million times, blah blah blah. Pulled it out, opened up the top by removing two torx screws and found Photo 1 and 2. 1-2-Pictured is some CD Changing Swing Arm that was jammed.
3-Forcefully removed.
Plug it in, it'll make a pile of noise looking for CDs, then all is good! CDs playing still works!!! I think this is why I got it so cheap, the warranty void sticker was broken where the top comes off, and the person probably looked at it and didnt know what to think.

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The Diversity Antenna Issue

Here is the long and short of it. Both HUs have TWO antenna inputs. But only one is transferable. This reducing overall signal strength.

I have noticed in parking garages that I will loose signal on P1 rather than P2 :( And the college radio station that I received only 75% is now probably down to 63% of the time. Everything else is fine.

Here is the rest of the story if it means anything to you, submitted by someone else:

Before progressing in the retrofit, the issue of the two different antenna systems used by the B6 and recent B7's must be addressed.

The B6 diversity antenna system brings two leads to the head unit, the main HF antenna (round connector) and the ZF diversity switching lead (FAKRA connector). The HF line carries the main signal (FM/AM) to the radio, while the ZF line acts as a communication bridge between the radio and the antenna module in the rear. The head unit instructs the module via the ZF which of the two antennas to switch to for the best signal.

In newer B7's, the antenna system has changed. Rather than having a ZF and HF connector, two HF connectors (one from each antenna) are brought to the head unit. This I believe allows antenna switching decisions to be made directly at the head unit. As I have not seen the new B7 system in person, I can't elaborate more on the components involved in this layout change.

As the Symphony II+ will only be able to use one antenna in the B6 there will be a slight degradation in FM reception. But if you live in an area with excellent FM propagation, the effects should be minimal for most stations.

The Symphony II+ has a dual FAKRA connector. The left connector (3) is the ANT 1 connection and handles both FM and AM signals. The right connector (2) is the the ANT 2 connection and only handles FM signals. For completeness, point 1 on the diagram is the QuadLock connector.

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More misc information that I need to clean up.

The Bose harness adapter, will have four channels line out to the external amps. A non Bose uses a different set of terminals in the quadlock connector to drive the two front channels directly from the HU. and the two rear channels from line level. It's one or the other, The diagram on the Sym II+ case, should clarify this.

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Here's the rough estimate at Connector B in your Sym II+: 1 - AUX L (aux input left audio)o 2 - CD SDI (audio ground for CD changer) 3 - AUX (aux in audio ground) 4 - +UB CDC (Constant power source for CD changer) 5 - Bose Pin 6 - CDC-Data out (CDC data out) 7 - AUX R (aux input right audio) 8 - SDI CD-L (cd changer left audio in) 9 - SDI CD-R (cd changer right audio in) 10 - CDC (Ignition/accessory power for CD changer) 11 - Data IN (cd changer data input) 12 - CLOCK (cd changer clock input)

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0140112 generates those codes and 0140102 does not.

Address 56: Radio Labels: 8J0-035-1xx-56.clb
Part No SW: 8E0 035 195 AC HW: 8E0 035 195 AC
Component: R Symphony2+ H02 0060
Revision: 00H02000 Serial number: AUZ1Z4F1828761
Coding: 0110122
Shop #: WSC 06335 000 00000
VCID: 68DFCAE958B9C77ED6-5140

6 Faults Found:
00446 - Function Limitation due to Under-Voltage
002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 5
Fault Frequency: 1
Reset counter: 131
Time Indication: 15

00870 - Bass Speaker Front Left (R21)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 2
Reset counter: 134
Time Indication: 15

00871 - Bass Speaker Front Right (R23)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 2
Reset counter: 134
Time Indication: 15

00874 - Treble Speaker Front Left (R20)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 143
Time Indication: 15

00875 - Treble Speaker Front Right (R22)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 143
Time Indication: 15

00821 - Antenna 2 for Radio (R93)
011 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00101011
Fault Priority: 5
Fault Frequency: 5
Reset counter: 243
Time Indication: 15

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Oct 2015
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Symphony II+ Upgrade

booneylander upvoted

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