Spread axle dump valve switch help?

So, finally after 4 years of owning my current truck I tried wiring it to the trailer that's equipped with a dump valve, to release the air out of the rear axle bags... I also have lift axle, on first axle of the trailer.


So on my 7 way the only hole that does anything when I attach the new hot wire from the switch in my truck to it Is, on the bottom left, its called 'D/green/Right turn signal & hazard"

The problem is that controls my lift axle, which I have a manual switch outside on the trailer that controls that. How come none of the other holes on the 7 way when plugging a hot wire into them is dumping my rear axle? I have a manual valve switch outside of the trailer that lifts/lowers that axle....

Another issue is, I bought this buzzer, so I don't forget to release the air dump, but when it's connected to the switch on my dash the buzzer stays on with both the switch in on and off positions, obviously it should just be buzzing when the switch is on....

So what am I doing wrong? I'm 100% my trailer has a dump axle as I had it hooked up on my old truck....


Also, how come this port under my dash that runs to the switch has 2 wires but while I'm messing with everything I tried running power to the trailer with only 1 wire attached and it powered the lift axle? What's the purpose of having 2 wires if one is doing the job?

One more thing is when I plug one wire in the hole on the bottom left and then the other in the top middle ground hole, my fuse keeps blowing? I was trying to stick 2 wires in different holes trying to get the dump axle to work....

I know its a lot said here, sorry. Im not good with electric so maybe what im saying sounds stupid to someone that is familiar with electrical stuff.

and yes those wire i have twisted together was just in the testing stages, once i get it all figured i will clean it up with fancy connectors. Definitely have no intentions of leaving them looking twisted together like pictured...

FYI I'm using a extension cord as my wires so it's weather proof outside the truck, just the green and white wire, the black is unused so far...

Maybe this old 7 way im using is no good possibility?


@Rideandrepair @DeereRunner97 @God prefers Diesels @D.Tibbitt

 

2019... yes I have two 7 ways on the trailer, one for all lights and abs then a separate one for this dump axle...

 

Ya, I spray painted the 7 way electrical connector for the dump axle red so it won't get mixed up with the standard green line that controls the lights and abs...

 

Don't see any wiring diagram anywhere on the trailer for it, maybe will search Reitnouer website for one.

I'm wondering if possible the dump valve is bad ... Haven't used it on 4 years
... I suppose that's definitely a possibility? Have no clue where it's hidden on the trailer. Gotta find out...

 

And this trailer came with a 4 way for the dump axle but I had the dealer replace it with a 7 way prior to driving it off the lot when purchased new, just because I had a spare 7 way electrical cord and didn't wanna purchase or mess with changing the connections on my truck while picking the trailer up. But never had a problem that way with old truck..