QX56 V8-5.6L (VK56DE) (2004)
5.
Remove the headliner from the rear trim (see Figure 7).
a.
Move the headliner to the right and take it loose from the left trim.
b.
Then move the headliner to the left and take it loose from the right trim.
6.
Take the wire harness loose from the front of the headliner (see Figure 8).
^
The harness is taped to the headliner.
^
Mark the tape locations before removing so you can re-tape it in the same spots during re-assembly.
7.
Remove the headliner from the vehicle by pulling it out the rear hatch.