Hi Guys
I managed to get the factory bluetooth connected to my JVC AVX810 on the weekend. Pretty simple really. In the quadlock connector there is a green plug with two wires going into it, black and white. This is the sound output from the bluetooth. I just cut the plug off and connected an RCA jack to the wires, white positive and black negative. Then i connected an RCA female to 2 male lead to give me two outputs and connected these jacks to the AV Input on my head unit. The TEL Mute wire in the quadlock was not much use when connected to the TEL Mute on the head unit, due to the fact the signal stays on when you have answered the phone so the unit stays muted and you cant hear the caller, so i didnt connect it. When the phone rings i have to rely on me seeing it on the dash, or noticing my phone ringing in my pocket (have it on vibrate). I then select the AV Input and voila, i can hear the caller.
Job Done