Tail light problems

so I tried to do a mod to put a back light in my 4x4 switch on my '05 tacoma, and I messed up. Didn't unhook the battery before I started the work, so I think I blew out a relay, problem is, I don't know how to identify the relay I need. My tail lights work, except when I put my headlights on, then the inside control panel lights for the ac and heating go out, along with my tail lights, thus I don't drive it at night. I tied my wiring for the light into the hot going to the AC switch, so it would make sense that it's this relay, cn anyone identify the relay I need, maybe part number?

 

Have you checked the parking light fuse in the interior fuse panel? It's behind the coin tray to the left of the steering wheel.