CCD camera above the cabin door. Horizontal field of view = 90 deg., vert. field of view = 20 deg.. It has a built in mic within the camera head body. Volume can be muted or controlled at the monitor under the 'MODE' function - very handy when running with the door closed. The wedge is a cedar shingle cut to provide the necessary vert. angular range for the bracket supplied. A single multiconductor small cable is fed straight into the cabin and routed along the port side wiring harness directly to the monitor, where the camera also gets its power.