This Scosche power outlet mount I've used before is similar albeit with that longer flex-neck so it doesn't obstruct the any of the switches or air-cond control.
Currently don't have a picture of it but here's the pic and link.


Currently I'm using one that is mounted on the grab-bar, it's using velcro to secure itself on the bar. However it seems they're no longer selling it on Amazon at this time. Sorry for the blurry pic, will re-take one under good lighting when I get back.

 

Sorry late reply, been very busy at work so didn't came here much.

Did modified it, instead of 3d printed bracket, I use a metal swivel holder, easier to adjust preferable fit-up due sun reflection.



Hereby parts:
(example)