There was a separate post going on in the general section about "GPS" systems and Tim mentioned he hooked one up today that is on full time. Check out that posting and perhaps get in touch with Tim on what he's using. Mine is hooked up to my GPS and the camera is on the license plate...Tim's is on the top of his trailer so he can steer you straight.
Hope this helps,
Jim & Linda Tator
2013 Crusier CF34SS Ford F250 PSD 7.3L
Ride-Rite Airbags Bully Dog
154 nights in 2013 - 4,370 miles
128 nights in 2014 - 5,082 miles