Thanks @zerotreedelta - Ive never done a switch to Ground signal....that is an interesting idea. Curious - why is it "safer" to go this way vs 12v? Is it the idea around running a hot lead into cabin of car for potential contact with metal; potential shorting out?
And final question (Ill add...
@45Dougal I like this idea better as I dont want constant power until a switch this closed.....not sure I can do a split for the ACC 12v for both relays....but see what you think.
Im only driving 2 LED spot lamps and 2 LED backup lamps....I assume a 20A relay for each is plenty. But correct me...
@45Dougal - whipped up a quick & basic schematic. Check my architecture here....but I think this is correct. I am wiring up some LED ditch and fog lights.....so low draw on power....but assume one relay can power a secondary fuse box with fuses for each set of lights. Dont think I need any...
Been wondering about this one - with our vintage glass fuse/boxes - what is best way to tap at the fuse box for accessory (switched) for say multiple relays for external lighting? I am thinking like a mini waterproof bus connector inside engine bay or under dash - with single tap into one of...