Wiring Diagram help! Please.

I am interested in installing bed lights on my 2016 Tacoma but I have very little experience with wiring whatsoever. I would like to add a 5 pin rocker switch in the dash, a pin switch for the tailgate so the lights come on when the tailgate opens, and also a relay. I would like to make it run "hot" so the lights can be turned on anytime without having the keys in the ignition but idk what wire to tap it into. A wiring diagram would really help! Also your opinion and input as to what would be a better option... thank you!