Has anybody added a second reverse camera to the dometic / carthago monitor ? Looking to add a second camera but the cable disappears deep under the dashboard, so just wondering if anybody has managed this and how they accessed the 4 camera connectors as I don’t want to be trying to remove the whole dash top as it looks a nightmare on a Carthago. Cable coming out of monitor goes to a 20 pin connector which then splits to 4 x 6 pin camera connectors. I can access the 20 pin connector easily enough but can’t get to the 4 camara connectors, any pointers would be much appreciated