Lazinskm, we used some of your tape on the back of the RV,and stuck the gasket to the tape and screwed through that.
We also used clear rubber sealent to coat all the wood and plywood in the cutout.
While we had everything apart, we replaced the turn/brake lamps with RED LEDs and the backup lamps with WHITE LEDs.
It was as simple as unplugging and plugging in..
We left the bottom of the light assemblies with no tape to allow a little bit of a "drain"
I hope it works like I think it will.
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