Dave,
Since you already have DVD installed in your truck. You are utilizing the only external input. The only other way to do this is to use a plug-in cord through your dvd
Yes you can hide the cord, but the plug will be visible.
run the cord towards the windshield than come across the driver or passenger door seal towards your radio, than bring the plug out below your front dash.
If you change a head unit you will loose your DVD audio, as this connects through multi pin plugs into your head unit,
Or
an antenna modulator with auxiliary plugs
http://www.amazon.com/Audiovox-FM-Modulator-FMM100A/dp/B0001KO7UI
Or
New head unit and hope that your DVD system has AUX out, and not a multi pin connector
I would go with my first option
Since you already have DVD installed in your truck. You are utilizing the only external input. The only other way to do this is to use a plug-in cord through your dvd
Yes you can hide the cord, but the plug will be visible.
run the cord towards the windshield than come across the driver or passenger door seal towards your radio, than bring the plug out below your front dash.
If you change a head unit you will loose your DVD audio, as this connects through multi pin plugs into your head unit,
Or
an antenna modulator with auxiliary plugs
http://www.amazon.com/Audiovox-FM-Modulator-FMM100A/dp/B0001KO7UI
Or
New head unit and hope that your DVD system has AUX out, and not a multi pin connector
I would go with my first option