24:th-Feb-2020, 08:07:28
Hi, I would imagine it hasn't been programmed for Bluetooth and doesn't have the module. Most come with the phone button but as you say all that will do if you press it is mute the audio. Rusty does a kit to retrofit and I'm sure he'll be along and give you all the details.
NAVI950 , DAB+ & Rear Camera , quick heat, auto lights and rain sensor retrofit