rear engine, fuel drain valve cable

I'm wondering about the routing of this cable. It goes between the engine mount and the fire wall up to the fuel strainer linkage. There isn't enough room to wrap the cable to protect the engine mount or fire wall. After spending a substantial amount of money repairing my engine mount, I feel the need to stop the chaffing.

A picture of your installation would be very helpful. If this is something you've encountered what did you do to resolve this?