I am the third owner of a 2001 Country Coach Infinity. The dash mounted Pioneer Radio with a flip out video screen must have died while coach was owned by a previous owner. They replaced the video with a separate screen on the top of the dashboard and a cheap in dash single din am/fm radio. I was thinking of replacing the dash mounted radio with a Pioneer AVH-X7800BT. Does anyone have an experience with these radios and how do I program the video to be used as my rear view monitor for viewing my towed vehicle?