Bose Audio and no sound - possible cause

[gianteli]

For nearly two years now I’ve had random instances where on start, my phone would connect to carplay but no audio source (carplay spotify, apple music, radio) would result in sound. I’ve had every software upgrade and most components (bar the control module) replaced. On the most recent instance of this, where the lack of audio persisted after several restarts of the vehicle and soft-resets of the PCM, I got a phone call and was able to have a normal conversation. This gave me pause…it clearly wasn’t an amp or cabling issue so it might be a processing problem. So I went into the bose settings and selected “stereo” in lieu of “surround” and turned off the variable volume options. Viola, music. Since then I haven’t had the issue again, so this wasn’t precisely a controlled test.

I’m also sending this over to my service department but thought it might be helpful for this group.

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[llindenb]

I’ve had exactly the same issue and have also noticed that a phone call will nearly always fix it (there was one case it did not, but there was something else happening at the same time so I’m not convinced it was the same underlying issue).
I’d not tried changing audio processing though as a sole fix and will definitely do so now and report back next time (if I remember- my memory lately is utter crap).

 

[Riggsplace]

Thank you! I'm glad to hear someone else has experienced this.


This has happened to me several times and only began after a recent software update. In fact, as I drove away from the dealer, I noticed there was no audio from any source. I turned around and went back, where they tried the usual fixes, including a reboot. When they couldn't get the audio working, I left the car there, and they reinstalled the software, which seemed to fix the glitch.


Since then, the same thing has occurred randomly every few weeks. Most of the time it resolves itself after the car is turned off and sits for a while — however, at least once it took two or three restarts before the audio returned. The dealer claims they have "never seen this before" and suggested I schedule another software reinstall to see if it resolves the issue. I'll try your suggestions next time it happens.

 

[ChrisFromUK]

After software updates in early May, I had the no audio problem for the first time ever a couple of weeks ago. I only have the standard audio - no upgrades.

Nothing I did made it work again until the car had been left for a couple of hours. Very odd driving with no radio, no sat nav directions, no driver aids & no indicator noises.

As this is undoubtedly a safety issue, I expect there will be another software fix along soon.

 

[llindenb]

Bullshit on the dealer. This issue has been well described and Porsche is aware. They released a software update back in January or December (I think I hit it in December as an “early” update) that was supposed to have included a fix for most of the issues (it was the big update that had lots of fixes in it).
Anyway, you’re not crazy!

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