Ready Brute brake cable routing Fiesta

I had my 2016 Fiesta with a Ready Brute tow system. Since,I have sold my motorhome and went back to a fiver. However my brake cable was a straight run from the grill to the fire wall. Obviously it had to dip some before running up to the fire wall but it came in directly behind the brake pedal pad. I kept the Fiesta and just went out and looked at the cable run. It goes directly from the grill under the engine and then slightly goes up and into the fire wall. Maybe you can shoot some silicone inside the tube the cable runs thru to lessen the friction.

My Fiesta is a five speed. I went with a five speed since it is so much simpler to set up for four down. If yours is an automatic something may be in the way that I don't know.