Thanks for replying Wimblowdriver. The ISO plug is in place behind the fascia and the front speakers are connected (in positions 3,4,5 and 6) but the pins for the rear speakers have no wires going to them (positions 1,2,7 and 8). The front speakers are working fine. I just cant find any trace of...

If they always worked we wouldn’t love them.

I’m the proud new owner of a 2012 110 2.2tdci and am delighted with the performance compared to my previous 200 and 300 tdis. I was delighted to see that it was factory fitted with rear speakers however on replacing the head unit I discovered that there is no wiring at the ISO plug in the dash...