Thanks for the tutorial. I purchased a new ribbon off ebay https://www.ebay.com/itm/Flat-Ribbon-cable-40-Pin-0-5mm-Pitch-200mm-long-FFC-FPC-Reverse-Direct-1pc/233749449613?hash=item366c8d8b8d:g:F0oAAOSwhJlfVt3w
and it fixed the problem
Does anyone know what type of connector is used for the DVD player harness to the car, is it USB-C, micro HDMI? trying to troublehoot as I replaced the ribbon several times and the backlight will come on now but no video wondering if the connector to the dvd player unit is the problem.