Ive changed the standard HU from my 100hp for an Alpine X305 and since then ive not been able to use the bluetooth. When I had my phone linked i could make calls and receive calls using the buttons on the steering wheel but I couldnt hear the person on the phone and the audio from HU kept playing
Its something related to the audio interupt but I cant work out what. I know there are 2 others on FF that have the same car and HU and it works fine for them so what am I missing?

I put the standard HU back in to pair my phone. after putting in the code, I get the voice talk to me in italian. and then it drops from my phone.

This is the wiring diagram on the standard HU, which connector would be the one to link to audio interupt to enable phone conversations to play through the speakers?

oh and this thread gives some info but it has confused me a bit

https://www.fiatforum.com/i-c-e/235...onality-after-aftermarket-stereo-install.html