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    Thread: 2012 Passat Bluetooth Iphone Stereo vs Mono

    1. 02-20-2012 11:52 AM #1
      Hi,

      I just picked up a 2012 passat and set up my iphone to play music over bluetooth.
      However, it seems like it is only set up to receive a mono connection instead of a stereo conneciton.

      Anybody else experiencing this issue or know of a way to update the bluetooth profile to stream music in stereo?

      Thanks,

    2. Member cfurman's Avatar
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      02-20-2012 06:39 PM #2
      Quote Originally Posted by Saber333 View Post
      Hi,

      I just picked up a 2012 passat and set up my iphone to play music over bluetooth.
      However, it seems like it is only set up to receive a mono connection instead of a stereo conneciton.

      Anybody else experiencing this issue or know of a way to update the bluetooth profile to stream music in stereo?

      Thanks,

      iPhone 4 and 4S here... Stream Bluetooth stereo with no problem at all. Check your iPhone settings or give it a restart. Or disconnect and reconnect your Bluetooth on your radio.
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      03-30-2012 09:52 PM #3
      Same Problem with my 2012 passat. Called VW customer service to find out that VW is aware of the issue. They dont have a fix for it as of now and are working to get this fixed. Lets just hope that it gets resolved soon. it is just annoying.

      PS: The dealership had no clue about this issue. They checked the vehicle to inform me that the bluetooth module was just fine and performs as designed. arghhh

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      03-30-2012 09:54 PM #4
      Quote Originally Posted by cfurman View Post
      iPhone 4 and 4S here... Stream Bluetooth stereo with no problem at all. Check your iPhone settings or give it a restart. Or disconnect and reconnect your Bluetooth on your radio.
      You may want to check a audio file with multi channel output. its quite obvious that the Right channel is what u will hear in all the speakers. Dealership folks tried it with a Jetta to replicate the issue.

    5. 03-31-2012 01:38 AM #5
      This is a very well known issue pertaining to the 9W7 and RCD-510/RNS-510 stereos in many different VDubs... it's not Passat specific.

    6. 03-31-2012 07:50 PM #6
      I have this problem. Basically the you never here the left channel

    7. 04-03-2012 08:04 PM #7
      Quote Originally Posted by McFuzz View Post
      This is a very well known issue pertaining to the 9W7 and RCD-510/RNS-510 stereos in many different VDubs... it's not Passat specific.
      I have this problem as well. What is the solution? My car is under warranty (2012) - does it affect only certain vehicles or all new VWs? Can my dealer fix it?

    8. Member mmhs19's Avatar
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      04-03-2012 08:19 PM #8
      Audiophile idiot question: does this affect the MDI connection as well, or is this just for music streamed via Bluetooth? I have a feeling this question makes the forum's inquisitive idiot of the day.

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      04-03-2012 08:21 PM #9
      I recall someone on these fourths mentioning that VW is aware of the issue and "working on a fix" but I feel as though it's not a very high priority to them. Adjusting the firmware to fix the issue is really not that difficult so if they were worried about it I'd assume we'd of heard something a bit more concrete by now.. Really frustrates me to no end.

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      04-03-2012 08:21 PM #10
      Quote Originally Posted by mmhs19 View Post
      Audiophile idiot question: does this affect the MDI connection as well, or is this just for music streamed via Bluetooth? I have a feeling this question makes the forum's inquisitive idiot of the day.
      Bluetooth only.

    11. 04-03-2012 08:55 PM #11
      Quote Originally Posted by mmhs19 View Post
      Audiophile idiot question: does this affect the MDI connection as well, or is this just for music streamed via Bluetooth? I have a feeling this question makes the forum's inquisitive idiot of the day.
      it's a perfectly valid question. for me, the MDI connection works perfectly and has better audio quality anyway. it's just less convenient to control.

      for now my workaround is to use bluetooth for phone ONLY and then switch to MDI input for music.

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      04-05-2012 08:31 AM #12
      I just did a test with my iPhone 4S (iOS 5.1) and stock RCD-510 (1K0-035-180-AD with Mute button and firmware 0018 ). I played AC/DC's "It's a Long Way to the Top (If You Wanna Rock 'n' Roll)" first from an SD card and next from the phone over BT streaming. In both cases, the distinctive opening guitar riff comes through only the left side speaker first before it's joined by other instrumentation. So, mine definitely plays stereo, not mono. This demonstrates the audio separation for your rockin' pleasure:

      http://www.youtube.com/watch?v=b9iOk8PqkKs

    13. Member MasVW11's Avatar
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      04-05-2012 01:11 PM #13
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      I just did a test with my iPhone 4S (iOS 5.1) and stock RCD-510 (1K0-035-180-AD with Mute button and firmware 0018 ). I played AC/DC's "It's a Long Way to the Top (If You Wanna Rock 'n' Roll)" first from an SD card and next from the phone over BT streaming. In both cases, the distinctive opening guitar riff comes through only the left side speaker first before it's joined by other instrumentation. So, mine definitely plays stereo, not mono. This demonstrates the audio separation for your rockin' pleasure:

      http://www.youtube.com/watch?v=b9iOk8PqkKs
      I wonder if it's an iPhone 4 vs. 4s issue.....I have the RCD-510 and iOS 5.1 in my iPhone 4, and my imaging is defintely different for the same song from BT to SD card....

    14. Member MasVW11's Avatar
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      04-05-2012 02:22 PM #14
      Quote Originally Posted by MasVW11 View Post
      I wonder if it's an iPhone 4 vs. 4s issue.....I have the RCD-510 and iOS 5.1 in my iPhone 4, and my imaging is defintely different for the same song from BT to SD card....
      Here's a comparison of my RCD-510 with SD Card and Bluetooth from an iPhone 4 running iOS 5.1


    15. Member phat7deuce's Avatar
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      04-05-2012 03:26 PM #15
      Quote Originally Posted by MasVW11 View Post
      I wonder if it's an iPhone 4 vs. 4s issue.....I have the RCD-510 and iOS 5.1 in my iPhone 4, and my imaging is defintely different for the same song from BT to SD card....
      Definitely not just an iPhone 4 issue. I have a 4s with iOS 5.1 and don't have the left channel. I thought the sound from Bluetooth streaming sounded off, but confirmed it using the L/R slider in Accessibility. Using Mono right now, which sounds better, but not perfect.

      I'm planning on calling VW Customer Care and Apple...the more people that log the issue the better, because obviously it doesn't affect everybody...

    16. Member phat7deuce's Avatar
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      04-05-2012 03:28 PM #16
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      I just did a test with my iPhone 4S (iOS 5.1) and stock RCD-510 (1K0-035-180-AD with Mute button and firmware 0018 ). I played AC/DC's "It's a Long Way to the Top (If You Wanna Rock 'n' Roll)" first from an SD card and next from the phone over BT streaming. In both cases, the distinctive opening guitar riff comes through only the left side speaker first before it's joined by other instrumentation. So, mine definitely plays stereo, not mono. This demonstrates the audio separation for your rockin' pleasure:
      How do you find out what firmware you're running? Is it through VCDS?

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      04-05-2012 03:47 PM #17
      Quote Originally Posted by phat7deuce View Post
      How do you find out what firmware you're running? Is it through VCDS?
      Yep, last 4 digits of the Component Field when you go into 56-Radio. There may be some way to see it in the hidden menu too?

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      04-05-2012 04:22 PM #18
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      Yep, last 4 digits of the Component Field when you go into 56-Radio. There may be some way to see it in the hidden menu too?
      would you please advice on how to see it from the hidden menu. Also, if i find the firmware to be outdated. why would the dealership not know about this when i brought the vehicle in last week? I was told that the car had the latest firmware version installed.

    19. 04-05-2012 05:14 PM #19
      Everybody should post their firmware # and correspondingly whether they have the mono/stereo problem or not. I will do this over the weekend.

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      04-05-2012 05:26 PM #20
      Quote Originally Posted by illusionVW View Post
      would you please advice on how to see it from the hidden menu. Also, if i find the firmware to be outdated. why would the dealership not know about this when i brought the vehicle in last week? I was told that the car had the latest firmware version installed.
      I think like this:



      My Passat was delivered in October and hasn't been back to a dealer so it still has the RCD-510 software that was installed at the factory, AFAIK.

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      04-05-2012 05:45 PM #21
      Hold the setup button down for more than 20 secs.

    22. 04-05-2012 06:32 PM #22
      Quote Originally Posted by cfurman View Post
      iPhone 4 and 4S here... Stream Bluetooth stereo with no problem at all. Check your iPhone settings or give it a restart. Or disconnect and reconnect your Bluetooth on your radio.
      Can you post the firmware version of your stereo? It would be helpful to identify if this is a hardware or software problem.

    23. Member phat7deuce's Avatar
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      04-05-2012 08:09 PM #23
      Quote Originally Posted by oronymo View Post
      Everybody should post their firmware # and correspondingly whether they have the mono/stereo problem or not. I will do this over the weekend.
      Here's my data:
      Left channel problem: Yes
      Phone: iPhone 4S
      Operating System: iOS 5.1

      RCD-510 info:
      Part Number: 1K0035180AE
      HW Index: H02
      SW Index: 0016
      SW Version: 20110323A
      Bootloader Version: 3.00

      I seems like Andy possibly had a newer version of the firmware (he had 0018), but hard to tell because the part number is different...I'd be interested to see what others have for data that are having the problem (and those that aren't.)

    24. Member MasVW11's Avatar
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      04-05-2012 08:28 PM #24
      Here's my data:
      Left channel problem: Yes
      Phone: iPhone 4
      Operating System: iOS 5.1

      RCD-510 info:
      Part Number: 1K0035180AE
      HW Index: H02
      SW Index: 0016
      SW Version: 20110323A
      Bootloader Version: 3.00

      So I have the left channel issue ( that missing guitar solo is on the left side), and the same exact radio as phat7deuce

      Andy....my radio is different ....looks like you have the RNS-510?, I.e. with. Nav? I have fm, am, and sat buttons on the left side, and media, phone, and setup on the right....so am not surprised you don't have this problem....unless that's not your car in the video you posted?

    25. Member phat7deuce's Avatar
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      04-05-2012 08:34 PM #25
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      I just did a test...I played AC/DC's "It's a Long Way to the Top (If You Wanna Rock 'n' Roll)"...
      ...in what will now forever be known as the "AC/DC Test" (technically speaking)...

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      04-05-2012 10:02 PM #26
      Here's my data:
      Left channel problem: Yes
      Phone: iPhone 4
      Operating System: iOS 5.1

      RCD-510 info:
      Part Number: 1K0035180AE
      HW Index: H02
      SW Index: 0016
      SW Version: 20110323A
      Bootloader Version: 3.00

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      04-06-2012 07:59 AM #27
      Quote Originally Posted by phat7deuce View Post
      ...in what will now forever be known as the "AC/DC Test" (technically speaking)...
      Instead of using music, I would suggest that you use a test file that isolates the left and right channels. Like one of these...

      http://www.ronelmm.com/tones/

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      04-06-2012 08:46 AM #28
      Quote Originally Posted by MasVW11 View Post
      Andy....my radio is different ....looks like you have the RNS-510?, I.e. with. Nav? I have fm, am, and sat buttons on the left side, and media, phone, and setup on the right....so am not surprised you don't have this problem....unless that's not your car in the video you posted?
      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?

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      04-06-2012 10:30 AM #29
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      The problem sounds like it's radio-dependent. Any other folks with the -AD radio having the problem?
      It seems like that's the case...it would be curious if other AD radios are having the problem. I'm going to try to call VW today, now that we've somewhat narrowed this down.

      It looks like firmware 0016 might be more current (at least for the AE). I'm going to guess SW version is the date of release, so those us of with AE are probably with the latest firmware (I was hoping 0018 was some magic firmware that would fix the problem, but it looks like its more radio specific, versus us having old firmware.)

    30. Member phat7deuce's Avatar
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      04-06-2012 10:31 AM #30
      ...and by the way, Andy - your post made me totally listen to High Voltage on the way to work today!

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      04-06-2012 10:36 AM #31
      Quote Originally Posted by phat7deuce View Post
      ...and by the way, Andy - your post made me totally listen to High Voltage on the way to work today!
      Excellent! My 2 year old daughter's favorite band is AC/DC and her favorite song is "Bells". I told her that's the full name of the song to keep Mommy happy. My 8 month old son is partial to "High Voltage" and "TNT". Lock up your daughters ...

    32. Member MasVW11's Avatar
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      04-06-2012 10:56 AM #32
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      Excellent! My 2 year old daughter's favorite band is AC/DC and her favorite song is "Bells". I told her that's the full name of the song to keep Mommy happy. My 8 month old son is partial to "High Voltage" and "TNT". Lock up your daughters ...
      The sponge bob music is because my 9 year old daughter danced to that song...makes a good demo of the problem, though.

      My kids refuse to listen to any retro music....they especially dislike my Rush

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      04-06-2012 11:06 AM #33
      Quote Originally Posted by MasVW11 View Post
      The sponge bob music is because my 9 year old daughter danced to that song...makes a good demo of the problem, though.

      My kids refuse to listen to any retro music....they especially dislike my Rush
      LOL! 2112 is my next most played album in my car.

      Last edited by Andy@Ross-Tech.com; 04-06-2012 at 11:08 AM.

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      04-06-2012 11:39 AM #34
      Quote Originally Posted by Andy@Ross-Tech.com View Post
      I think like this:



      My Passat was delivered in October and hasn't been back to a dealer so it still has the RCD-510 software that was installed at the factory, AFAIK.
      Awesome. Thank you !!

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      04-06-2012 11:46 AM #35
      Here is my info guys
      Left channel problem: Yes
      Phone: iPhone 4
      Operating System: iOS 5.1

      RCD-510 info:
      Part Number: 1K0035180AE
      HW Index: H02
      SW Index: 0016
      SW Version: 20110323A
      Bootloader Version: 3.00

      I'm just curious n miffed because the older version just works fine but the newer one doesn't. I will call VW today as well. Last time I did they told me its a software issue. But this looks like a model issue to me.

      Thanks folks

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