Should the dvd in the head unit be able to be viewed on all 3 rear screens at the same time?
Right now it only shows on the flip down center screen. and in the options there are no options for monitor 2 or monitor 3, just the flip down screen (i can route head unit to it, or Aux to it).
On the rear headrests, the are seeing each other correctly as monitor 3 or 4. i can play a dvd in one and see it in the other with no problem.
Sources available are
Monitor 3 (or 4) (from the OTHER headrest)
channels (yes, i thought this was not supposed to be available, maybe thats my problem) -- these channels are 2-69 and none of them show anything
and DVD (from the unit itself)
Is there a brain unit for these two screens I should check, or any programming that can be done? What are the channels for?
-this car is used and did have GM322 and Ipod installed but I removed all of it to troubleshoot....everything including XM works as its supposed to except for seeing the head unit dvd on the headrest screens.