Guy that built my Mk4 left the license plate light wiring hanging under the lid. I know what you’re thinking, “way to un-finish the car”.

I’m going to run it through the truck lid inner and then make a cover for the hole at the back-inner. I have noticed there are so many different ways guys do this.

What I am wondering from those of you that have done this, is there a best route?
I’ve seen guys drill through the front lip, the bottom side….and then the shear laziness of mine…..just leaving the wiring hanging

Is there an area to stay away from when I drill and place a grommet?
Any advice is muchly appreciated