In case this is useful to anyone:
I bought my VW T6 with Composition Media and App Connect in December 2015. When I first connected the HTC One M8, I rushed through the initial setup.
For the past month, the experience with AA has been awful - the headunit kept handshaking into MirrorLink, despite the preference being set to connect to Android Auto. It would then drop the bluetooth link. Totally unpredictable - no pattern I could discern. Tried USB debugging, tried sacrificing a lamb at the altar of Android. No joy.
I went back and forth with VW - absolutely useless, but they have refunded the cost of my App Connect.
However, I think I've finally cracked it. I did a factory reset on my M8 - complete clean out - and installed AA again.
This time, when I first connected it to the headunit, I noticed a couple of options I hadn't seen before - maybe because I rushed originally, maybe because I deviated from the prescribed order of setup. Dunno.
Anyway, I noticed the nag prompt on the HTC that asks if you want to connect to a particular app "once" or always" - this time it was asking if I wanted to connect to MirrorLink or AA. I selected AA - always.
It now connects all the time. The only caveat is that you have to wake the phone before connecting - it can get it's knickers in a twist otherwise.
So, I now start the engine, wake the phone and then connect the USB - I don't even need to select the phone in the headunit UI anymore, the headunit just sees the M8 and connects automatically.
I bought my VW T6 with Composition Media and App Connect in December 2015. When I first connected the HTC One M8, I rushed through the initial setup.
For the past month, the experience with AA has been awful - the headunit kept handshaking into MirrorLink, despite the preference being set to connect to Android Auto. It would then drop the bluetooth link. Totally unpredictable - no pattern I could discern. Tried USB debugging, tried sacrificing a lamb at the altar of Android. No joy.
I went back and forth with VW - absolutely useless, but they have refunded the cost of my App Connect.
However, I think I've finally cracked it. I did a factory reset on my M8 - complete clean out - and installed AA again.
This time, when I first connected it to the headunit, I noticed a couple of options I hadn't seen before - maybe because I rushed originally, maybe because I deviated from the prescribed order of setup. Dunno.
Anyway, I noticed the nag prompt on the HTC that asks if you want to connect to a particular app "once" or always" - this time it was asking if I wanted to connect to MirrorLink or AA. I selected AA - always.
It now connects all the time. The only caveat is that you have to wake the phone before connecting - it can get it's knickers in a twist otherwise.
So, I now start the engine, wake the phone and then connect the USB - I don't even need to select the phone in the headunit UI anymore, the headunit just sees the M8 and connects automatically.