To tag along to this thread... i have a 2018 Expedition Max (I know this is the Lincoln forums) with factory RSE installed. Currently no power to the driver headrest unit (blue power light on top is dark, no power, button does nothing even if i hold). The passenger unit has blue power button lit up but won't show anything on the display, holding the button used to make the touch buttons blink red (whatever that means??), but I haven't even been able to get that recently. I have checked the power connections below each seat by plugging and unplugging. I have disconnected battery for 5 minutes for a reset. I have checked the fuses below each seat on the wiring harness. I tried to remove the screen to check the power connection at the actual monitor but could not get the locking pins to release so I couldn't tilt the monitor out any further. I found the entire wiring harness diagram somewhere in this forum so I think I understand the system, but I am banging my head against a wall, any thoughts? This is the EVO-5 DVD system. Would really love to get the monitor to hinge down the full 90 degrees, but I can't seem to get the pins to release, any tricks for this?