Hi,
I have a 2012 R55 clubman, non hk system and am adding a subwoofer. The problem I have is that I cant see any way of routing the 12v cable through the firewall.
How do i do this?
Thanks,
Mark.

 

I don't have your model, but they all have access holes in the firewall. You will probably find a plastic or rubber grommet. Keep searching, contort your body a bit under drivers foot well if you can't see it from engine bay.