best place is to talk to tim at
www.rvcams.com
i put in the voyager hd color monitor that takes 4 cameras. i put a new rear camera, side cameras and have a front camera yet to install. you can input gps onto the voyager. i cant imagine you want to watch movies or anything like that on it. i mounted mine hanging from the top cab's next to the rear view camera. i made a cover for the center console where the old camera came out. i have the old b/w sony tube monitor, if you are interested in it. it works just fine. i also have my cameras set up that they can be viewed on both of the lcd hd tvs in the coach as well as the dedicated monitor. i actually just got this all installed in the last week or so.
tom