Can a factory naviation unit be used to play dvd's and hooked up to headrests?? Any clues/websites/suggestions are welcomed

 

There are three options as to making your nav screen into a video monitor along with the headrest monitos. However navtech is a ver costly mod the other 2 options are decently priced but one requires cutting wires for the nav unit and stuff which is not good to do to a beautiful lexus nav system and the newest company is coming out with a plug in and play unit for video nav which is your best bet because its made by engineers who techincally trained for the modification. PM me if you have further questions about the upgrade

Nav-tech.com
video-nav.com
nav-tv.com