I've just changed the twin sockets for a 13 pin on my CRV (06 reg)Rather than use the two existing cables, I connected them to a terminal block in the well of the boot, and then took the new cable from the block down to the socket. I've checked for relevant supply at the socket, and just need to pop over to the storage site to connect up to the van for a function check. Should be ok as it was a simple connection job.