Used 3 Adel clamps to position the heater control cable including one on the firewall at the end of the run. I first used a supplied shaft-drilled AN3 bolt with washers to secure the cable wire. No Joy. The cable connection bolt needs to rotate a little as you open and close the heater flap because of the geometry going on down there. It didn't allow any movement so the cable did not achieve full throw. I replaced it with a special wire connector that swivels because you use a castle nut and cotter pin, allowing slight movement. Thats enough to allow the cable to remain straight as it is pulled open and closed. It worked perfectly. Check.
Rotating wire nut worked perfectly as the heater door opened and closed.
Heater cable heading down towards center heat door.
Looking up in top right corner where cable is secured before turning down at firewall.
