It sounds from your last posting that you have already began the work of replacing the entire cable. When you purchase your new camera, make sure it comes with its own cable and monitor. When I replaced my Voyager system, I bought the camera with the cable and monitor. The Voyager system I had was old and the cable connections did not match the new monitor and camera, so I could not use the old cable. I routed the new cable in the same manner you have described. I encountered very little silicone and only had to remove a few screws to allow me a gap of about a 1/4 inch in order to insert the cable along the top and side molding.
