[1963c-10]

Here you can see the notch in the screen where the cable goes through to enter the vent box. 2nd pic shows the box in place. The trick to the cable is to adjust it before installing the vent into the kick panel. Then install the screen (cover) last. You can also see how the air flows better with the screens than w/o. The made a big difference in the direction the air goes. Use to just blow in the cab, now its directed towards the driver/passenger. I used some $.99 rubber mounts to hold the cable to the firewall and just used the top screw that mounts the screen to hold it in place.