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    Thread: 2012 Passat Bluetooth Iphone Stereo vs Mono

    1. Junior Member tdhart's Avatar
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      04-14-2012 12:08 AM #51
      Quote Originally Posted by illusionVW View Post
      ...I even demoed him the issue with no luck.
      How does THAT work! Wow, that "tech" needs to look for a new line of work! You demo'd the problem and his response was still "nothing wrong"!?!?

    2. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-18-2012 02:13 PM #52
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      That's not my radio in the video, just a vid I found demonstrating the hidden menu. Mine is an RCD-510 but the older version (without the phone button that the newer ones have):

      Left channel problem: No
      Phone: iPhone 4S
      Operating System: iOS 5.1

      RCD-510 info:
      Part Number: 1K0035180AD
      HW Index: H04
      SW Index: 0018
      SW Version: 20101014A
      Bootloader Version: 3.00

      The problem sounds like it's radio-dependent. Any other folks with the -AD radio having the problem?
      Does anyone experiencing the problem have VCDS? Here's a readout from my 77-Telephone unit which is NOT experiencing the mono problem:

      Address 77: Telephone (J412) Labels: 7P6-035-730.clb
      Part No SW: 7P6 035 730 F HW: 7P6 035 730 F
      Component: TELEFON H09 2902
      Revision: 1B001001 Serial number: 00007660489052
      Coding: 0A10040000010110

      Post yours to compare.

    3. Member vw_freak7's Avatar
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      04-18-2012 11:43 PM #53
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      Does anyone experiencing the problem have VCDS? Here's a readout from my 77-Telephone unit which is NOT experiencing the mono problem:

      Address 77: Telephone (J412) Labels: 7P6-035-730.clb
      Part No SW: 7P6 035 730 F HW: 7P6 035 730 F
      Component: TELEFON H09 2902
      Revision: 1B001001 Serial number: 00007660489052
      Coding: 0A10040000010110

      Post yours to compare.
      I have a '12 GLI, but this mono issue IS affecting me too. Here's mine for comparison...

      Address 77: Telephone (J412) Labels: 7P6-035-730.clb
      Part No SW: 5K0 035 730 E HW: 5K0 035 730 E
      Component: TELEFON H09 2902
      Revision: 1B001001 Serial number: 00007661506182
      Coding: 0A10040000010110
      Shop #: WSC 01383 790 50316
      ASAM Dataset: EV_UHVNA A01719
      VCID: 275635815EF635B

      There is a this similar thread in the MkVI Jetta Forum dealing with this too...
      http://forums.vwvortex.com/showthrea...ay-need-mine)!


      Just for comparison sake here's the log for my stereo too...

      Address 56: Radio (J503) Labels: 5M0-035-1xx-56.clb
      Part No SW: 1K0 035 180 AE HW: 1K0 035 180 AE
      Component: Radio Prem-8 H02 0016
      Revision: -----16S Serial number: VWZ4Z7M3249447
      Coding: 01000400020006
      Shop #: WSC 00066 000 00000
      VCID: 63CE6191624E99B

    4. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-19-2012 10:05 AM #54
      Thanks for the data! I'm guessing that every 2012 Jetta with RCD510 has the AE radio, and we early 2012 Passat buyers lucked out by getting the leftover AD radio.

    5. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-19-2012 10:25 AM #55
      For anyone who is experiencing the mono problem, please post (or email) a complete AutoScan using VCDS:

      http://www.youtube.com/watch?v=RCBt6d42-Fc

    6. Semi-n00b
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      04-24-2012 07:19 PM #56
      Any updates? Or are we giving up on our living in stereo dreams? lol

    7. Member MasVW11's Avatar
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      04-24-2012 09:11 PM #57
      Quote Originally Posted by MiKeE336 View Post
      Any updates? Or are we giving up on our living in stereo dreams? lol
      I still have to....

      1. Get my auto scan done at my local indie shop
      2. Call VW
      3. Go in to dealer to get manual replaced and then have them look at the mono issue.

      Just haven't had time yet...

    8. Junior Member tdhart's Avatar
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      04-27-2012 03:49 PM #58
      I am having the mono problem, @ Andy: I can email the complete scan if you want. Should I use the address that is your your username here?

      Just got my cable in the mail from Ross-Tech last night

      Left Channel Problem : Yes
      Using: iPhone 4s
      Tested: Motorola Droid Razr Maxx
      Tested: iPhone 4
      Tested: iPad2
      iOS ver: 5.1


      Radio:

      Address 56: Radio (J503) Labels: 5M0-035-1xx-56.clb
      Part No SW: 1K0 035 180 AE HW: 1K0 035 180 AE
      Component: Radio Prem-8 H02 0016
      Revision: -----16S Serial number: VWZ4Z7M3249440
      Coding: 01020000010006
      Shop #: WSC 00066 000 00000
      VCID: 63EB7450624E991

      Phone:
      Address 77: Telephone (J412) Labels: 7P6-035-730.clb
      Part No SW: 5K0 035 730 E HW: 5K0 035 730 E
      Component: TELEFON H09 2902
      Revision: 1B001001 Serial number: 00007661515213
      Coding: 0A10040000010110
      Shop #: WSC 01383 790 50316
      ASAM Dataset: EV_UHVNA A01719
      ROD: EV_UHVNA_VW36.rod
      VCID: 277320405EF6351
      Last edited by tdhart; 04-27-2012 at 03:52 PM.

    9. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-27-2012 04:16 PM #59
      Thanks for posting up that data. Looks like both your 56 and 77 are different from mine. Please email the complete AutoScan to:

      support@ross-tech.com


    10. Junior Member tdhart's Avatar
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      04-27-2012 04:24 PM #60
      Scan is on it's way. Yes, I saw that too.

    11. Junior Member tdhart's Avatar
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      04-27-2012 04:40 PM #61
      But then, I suppose it could be that I'm a Jetta TDI?

    12. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-27-2012 04:44 PM #62
      Quote Originally Posted by tdhart View Post
      But then, I suppose it could be that I'm a Jetta TDI?
      You're a loooong way from home, Jetta Boy. Your scan should be helpful nonetheless. One from a Passat owner with the mono problem would great too.

    13. Junior Member tdhart's Avatar
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      04-27-2012 05:20 PM #63
      Yes, I know. But I was just searching for the problem, since the info on my home forum is a bit limited.

    14. Member MasVW11's Avatar
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      04-28-2012 09:18 AM #64
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      You're a loooong way from home, Jetta Boy. Your scan should be helpful nonetheless. One from a Passat owner with the mono problem would great too.
      I'm going to go get my auto scan done this next week, and then will send it

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      05-01-2012 01:24 PM #65
      bigbadvoodooguru04-06-2012, 08:13 PM

      Your car came with a 9W3 originally (or was wired from the factory to accept one). The 9W3 did not support A2DP stereo streaming or streaming for that matter, so therefore you are missing two wires from the harness under your seat to the back of the stereo. When the 9W7 unit was installed (possibly by the dealer or VWoA mandate since they are being sued over it) the harness was left untouched, and thus you only have one channel audio. There is no software fix. You must run two more wires for it to work.

      I just recently built my own bluetooth harness from scratch so the part numbers you need are:

      One: 000 979 009
      One: 000 979 010

      Cut the wires in half and make it so you have a 009 (plugs into green plug on head unit) ---------x(solder)---------- 010 (plugs into the 54pin connector under your seat. You need two of these wires.


      On the 54 pin plug:
      Left Channel:
      + is pin 8
      - is pin 9

      Right Channel:
      + is pin 4
      - is pin 5

      On the Green plug:
      Left Channel:
      + is pin 11
      - is pin 5

      Right Channel:
      + is pin 12
      - is pin 6

      I listed both right AND left because I am not sure which channel you are missing. IIRC you should be missing the RIGHT channel."


      Do you guys think that this is the Issue?

    16. Junior Member tdhart's Avatar
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      05-01-2012 01:51 PM #66
      Wow. I don't know, but I will look at the plug on my BT unit under the passenger seat to see if either the left or right channel wires, as indicated by your post are vacant.

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      05-01-2012 02:30 PM #67
      Looks like this is what we need to be doing.. Damn

      http://www.myturbodiesel.com/forum/f...ers-only-6019/

    18. Member phat7deuce's Avatar
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      05-01-2012 03:51 PM #68
      Quote Originally Posted by illusionVW View Post
      bigbadvoodooguru04-06-2012, 08:13 PM

      Your car came with a 9W3 originally (or was wired from the factory to accept one). The 9W3 did not support A2DP stereo streaming or streaming for that matter, so therefore you are missing two wires from the harness under your seat to the back of the stereo. When the 9W7 unit was installed (possibly by the dealer or VWoA mandate since they are being sued over it) the harness was left untouched, and thus you only have one channel audio. There is no software fix. You must run two more wires for it to work.

      I just recently built my own bluetooth harness from scratch so the part numbers you need are:

      One: 000 979 009
      One: 000 979 010

      Cut the wires in half and make it so you have a 009 (plugs into green plug on head unit) ---------x(solder)---------- 010 (plugs into the 54pin connector under your seat. You need two of these wires.


      On the 54 pin plug:
      Left Channel:
      + is pin 8
      - is pin 9

      Right Channel:
      + is pin 4
      - is pin 5

      On the Green plug:
      Left Channel:
      + is pin 11
      - is pin 5

      Right Channel:
      + is pin 12
      - is pin 6

      I listed both right AND left because I am not sure which channel you are missing. IIRC you should be missing the RIGHT channel."


      Do you guys think that this is the Issue?
      I'm kind of surprised if it is, considering the first run of Passats with the older RCD-510 don't have the issue. They also have 9w7, I believe...so how did the harness go backwards as time went on? Weird.

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      05-01-2012 04:33 PM #69
      Quote Originally Posted by phat7deuce View Post
      I'm kind of surprised if it is, considering the first run of Passats with the older RCD-510 don't have the issue. They also have 9w7, I believe...so how did the harness go backwards as time went on? Weird.
      Agreed. We just have to look at the harness underneath the passenger seat to figure out if this is true

    20. Member MasVW11's Avatar
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      05-01-2012 08:08 PM #70
      IMO, if it's missing wires, I think my warranty should cover them removing the radio, etc. and getting the right harnesses installed.

      But wait, we have sound in both sides, just not the right sounds....seems to simple to be a missing wire, somehow.

    21. Member MasVW11's Avatar
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      05-01-2012 08:10 PM #71
      Quote Originally Posted by MasVW11 View Post
      IMO, if it's missing wires, I think my warranty should cover them removing the radio, etc. and getting the right harnesses installed.

      But wait, we have sound in both sides, just not the right sounds....seems to simple to be a missing wire, somehow.
      By right I don't mean the right side, I mean correct 'imaging' of the stereo.

    22. Member phat7deuce's Avatar
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      05-01-2012 09:13 PM #72
      Quote Originally Posted by illusionVW View Post
      Looks like this is what we need to be doing.. Damn

      http://www.myturbodiesel.com/forum/f...ers-only-6019/
      Just read this...I guess you can't argue with results right? Still doesn't make sense to me. I took my Passat in yesterday and showed one of the guys in service. He said it was the first he's heard of it, but was going to contact VW and check a database where dealers report issues they're experiencing. Most people probably don't even notice it to report it...

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      05-02-2012 09:33 AM #73
      Quote Originally Posted by phat7deuce View Post
      Just read this...I guess you can't argue with results right? Still doesn't make sense to me. I took my Passat in yesterday and showed one of the guys in service. He said it was the first he's heard of it, but was going to contact VW and check a database where dealers report issues they're experiencing. Most people probably don't even notice it to report it...
      Exactly, not many people will niotice it. I sent an email to the dealership yesterday as well as i dont have the liberty of visiting him as i please. i have to drive 2 hrs to get there. please post what you find out after u contact VW.

    24. Junior Member tdhart's Avatar
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      05-02-2012 12:29 PM #74
      I haven't checked back with my dealer, but I suspect they have not done anything. Nice guys, but lets face it, this is probably not a huge issue for a busy dealer. I brought my Jetta in, spoke with the lead electronics guy, showed him the problem and got him to understand. They asked me to bring the car back and leave it with them so they could work with VW on the problem.

      I explained that my car is my daily commuter, and asked them, since they probably at least 5 more cars on the lot with the exact same problem, if they could use one of THEIR cars to test on, rather than making me take time off work. They agreed, but sadly, I haven't heard back from them.

    25. Member phat7deuce's Avatar
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      05-02-2012 09:15 PM #75
      Quote Originally Posted by illusionVW View Post
      Looks like this is what we need to be doing.. Damn

      http://www.myturbodiesel.com/forum/f...ers-only-6019/
      I don't think the harness is the issue...the posts below are from the other forum on this. And the harness appears to be correct. The forum on myturbodiesel is referring to 9w7 retrofits, which comes with a whole host of issues since the functionalities of the 9w3 vs 9w7 aren't the same. I still think there's something with the software on the latter produced RCD-510's. Hopefully I hear from the dealer soon...

      Quote Originally Posted by gromczyslaw View Post
      I want above and beyond to trace that problem in my SE TDi. I have found the bluetooth module which is under the passanger seat and took the head unit out. It turns out the harness is 100% right. There are 4 wires which interconnects head unit and bluetooth module. Problem is either wrong coding, firmware issue OR the headunit has both channels shorted on input side. Im soon due for courtesy checkup and I will bring this up to the dealer.
      Quote Originally Posted by gromczyslaw View Post

      this is a side of bluetooth module.green, blue and two white wires are left and right channel.


      head unit side, on the right we can see the same wires going in.

      This is RCD-510 unit.

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