Siri not working while connected to Audi AMI

Question

it turns out that I cannot fully use the features of my iPhone while
connected to a certified car audio system (Audi Ami).
env: iOS (10a403), iPhone 4S ,audi q5 , ami hw h07,sw 0350, Bluetooth Nokia bh-202
issue: iphone connected to car through cable, BT paired and working for phone answ.
action 1 (OK): press BT to wake up SIRI,it works.
now start listening music, for the very first time after connecting the phone .
action 2 (KO): press BT to wake up SIRI , music fades out, Siri pops up , BT 'bips' intending
              that audio is ready, suddendly Siri closes immediately after bip just like you press BT ,
              with no way to speech anything. The same action performed without being attached
              to AMI works  as expected.
action 3 (work around) : while listening music and without Siri working as described in action #2,
            activate 'Podcast' app , select an existing podcast and play it.
            you will continue to see the previous song title still on AMI display but the sound is actually your podcast
            (first little bug). now press pause/mute on the radio and press BT to wake up Siri,
            it will works.
others: pausing/muting AMI  , switching it completely off , switching off the car while playing music
           does not workaround the problem.
it seems that the behavior is different when 'Music' app is playing audio or when another application
('Podcast') is playing audio. For this reason I tend to blame Apple's software than Audi sw.
it seems that the issue is related to the fact that the phone try to use not the BT mic to
listening for commands but search (and fails) , for some other (car?) mics.
I'm available for further test with some kind of debug app to produce  diag information .

Answer 1

Hi ,
In the meaning while I upgraded to 5S (IOS 7.0.4), this introduced the  Lightning-to-Dock adapter .
I'm using the Apple's original adapter and things seems still working (I wonder) , I mean :
+) if you are listening music, it's enough that you pause it from  AMI and kick in  SIRI with BT/HeadPhones long click
If you do not use this WA, SIRI seems dumb , even if you use IPhone-s MIC/HeadPhones/BT .
I guess that the AMI is keeping control of the music app and redirects the MIC elsewhere (maybe
assuming that AMI have his own MIC) . I think that if this problem can be reproduced with another docking
station for IPhone that access the music library directly and take control of Audio/Mic
AMI can be definitively ruled out from this (BUG?) .
I would call it BUG because it expected that SIRI activation should override any MIC redirections and prefer MIC/HPhone/BT.