A while back the video on the headrest monitors stopped working on my wife's x930bt.  The headrest monitors would just display "No Signal".  I drug out an old VCR/DVD player to test the monitors.  There is a Y cable in the console that branches off to the two monitors.  Plugging into that from the DVD player produced video.  I've upgraded the unit to the latest maps and software/bluetooth, but still no video.  I've pulled/switched cable from the rear of the unit (monitor output) and no video.

 

Any ideas?  I've "factory settings reset" the unit as well.  I cannot find anything on this, but an idea I had was perhaps it was a PAL/NSTC thing...  seems like the unit is NTSC only.  I can't find anything about a "rear monitor off" setting.  Things did work at one time...  thanks in advance.

 

Jr!