[Mobile-Portable] NAV TV / Icom IC-7000 in a Ford Super Duty

[N5WV]

I had a Nav TV unit installed in my 2015 Ford F 350 Super Duty. I want to use my Icom IC-7000 with my trucks large LCD. I connected the 7000 to the RCA video input jack located in a compartment under the top of the trucks dash. I used the same Radio Shack cable I used to connect the 7000's video output to a portable LCD TV . But I do not get any video from the 7000. It works connected to the portable TV but not the trucks LCD. My trucks user manual only covers using the input jacks with a I Phone. It states a special cable from Apple must be ordered that has both a RCA phono and a USB connection attached. If somebody has used a NAV TV unit and a Icom IC-7000 with a 2014 , 2015 or 2016 Ford Super Duty's LCD please contact me. Randy N5WV N5WV at Comcast.Net