Looks good to me too, but you may need/want to add a relay for the buzzer that is triggered by the backup switch. That backup light circuit was onily intended to power the backup lights, and you are already adding a load to it with the flood lights. The buzzer might be too much. Even if the wire can handle it the switch itself might not like the extra load.
I guess I want to do something similar with my horns. I've got remote start installed on the Kia. Horn power goes through the remote start system and fused there in addition to the factory fuse. Don't like the horns sounding when I remote start at 6 AM, especially after I upgraded the horns. Have the fuse pulled from the remote start to prevent thatm but it also disables the steering wheel horn button. I don;t want to dig into the car's wiring and rewire, but I want my horn button and no horn with remote start. I'm investigating if there is way I can tap into the fuse location to add a remote switch with an inline fuse. Turn off the horn when I'm planning to remote start, but hagve it turned on while driving. I've seen something similar to what I'm thinking about for some sore of GM towmode trickery, I'm just trying to locate the parts to DIY.
Yeah, I'd claim that I was pulling the pilot out too. Too emarassing to admit that it's actually the other way around.
