The rear passenger cubby is a good place for USB, 12VDC outlets and rear window switch, like below on WallyToo's.
Accessible with passengers or when sleeping in the back. I am looking for one for my DLX.
Meanwhile, I could get started by making the opening; I could also make my own, worst case.
If anybody has his panel out, may I ask for dimensions for the 4 corners, referenced to the top and rear edge of the panel?