LED strip light installation under awning

I had considered using the porch light to power mine, but I wanted to use the led strip without the porch light on. I drilled a hole thru the wall just under the awning/gutter rail near the door into an upper cabinet to grab power at the interior cieling/exterior light switch panel. Both the power supply and the ir remote eye are fed thru this hole so the remote control can be used outside. I cut a square of eternabond tape to cover the hole, while leaving the ir remote eye exposed. This works great, however, a seam in the awning/gutter rail 4 feet away drips and corrodes the “waterproof” strips and I have had to replace them almost yearly. The most recent replacement last spring I placed a square of eternabond tape over the light strip at the rail seam as a sort of drip cap and all is good so far.
Another option would be to run power down next to an awning support to the underside of the camper, then to either the main fuse panel or to the tongue(battery)