Swt - out signal to Swt + out signal

Just pretend that the ground for the multimeter was hooked to the power source the whole time, thank you in advance. I promise this works.
30 power in from fused source. Only need to support swt signal requirements, which is usually pretty low amps
86 looped to 30
85 swt grd signal in.
87 swt power signal out

[@davecolquhoun9315]

Ok, so I get the way to switch the trigger, really handy , because every one has regular 4 or 5 pin relay laying around, and I prefer solid state relays , quicker and longer lasting , I am always getting something from your site, as you have such cool problem solvers, just used my step up butt connector, HAA HA

[@vintagespeed]

lots of ways to skin a cat. but if we're talking just a single function (low fan/pump) like in your video, the small relay isn't needed at all. just wire the big 80a relay the same way. you could also run the +12v signal to the dual signal input on the 80a relay to power both 80a outputs. i dig that relay and you have a good price on it. 👍 (i could've used one of these on my current air ride, dual compressor setup for my customer.)