Papalaxeroux

Replying to my own post incase anyone else needs it, the brown wire is an earth. All up and running, working fine and thanks to all who helped me. I saved a bunch of cash which is always nice.

Hi Eddie, very kind of you to assist, the Bluetooth unit is a 5K0035730D is it any good? The green connector went in OK and I soldered the can wires into the twisted pair coming out of the quad connector, that went OK. I picked up a permanent live from the radio supply, again all good. My only unknown now is the brown wire, I have been told its an earth, but also after second power, can you advise on that one please? Thanks for your help.

Hi folks, I have recently upgraded from a Bolero to a columbus unit in my 2011 Octavia Estate Greenline. I have fitted the unit and a new Bluetooth controller, I'm using loom of part number 1K8035730D. This loom has a green block which connects directly into the head unit via the original connection block. There's also a microphone cable that runs up to a position in the interior light switch unit. I am left with a twisted pair (can + & can -), a red and a brown wire. Can anyone help me with where to solder in the twisted pair and the two spare wires which I know are power related, but I need to verify exactly what they are. Thanks for your help folks.