Hey if you need help with those switches. I tied into my power windows fuse to get power. Been like that for years since I originally did mine with the add-a-circuit. Just don't exceed the primary fuse rating when you add the second fuse. I did it that way so it's switched so nothing won't stay on unless the key is on.
SVT Squad #227 || Build # 1329 of 1978 || FF ROTM Oct. 2006