Yet another wiring / fuse / lighting question...

[Renderplease]

Hi All,

Apologies for posting a question that in some way or another I'm sure has been answered, but after a few days of searching, watching videos and gathering information I figured I would gut check to see if I'm going in the right direction.


I'm a newbie with both this rig and electric, I am trying to figure out the best wiring for my situation.

I drew up a rough wiring diagram of what I'm going for - does this seem right? I'd like the whole fuse block to be on ACC power (right?), where would I tap that to the relay, most of my searches have been about cabin power and I can't seem to find a straight answer.

I also will have 2x heated seats, and some USB ports in the cabin but I figured I would just fuse tap the wipers?

Sorry again if this is a redundant question, or if I'm simply way off mark. Trying to learn!

All the best and thanks,
Alex

 

[Renderplease]

Bump! Any help appreciated :noidea:

 

[Tucson4runner]

Looks like you'll be fine tapping into that power source. I have my spod system hooked up to the same one I believe and it works just fine for me.

Sent from my SM-N975U using Tapatalk

 

[TheDurk]

Well, for that much load, I would prefer to pull direct from the battery positive with an in-line fuse, on a wire sized to the total load. Then run the relay trigger to anywhere on the ACC circuit. The ACC fuse is in the engine bay box, and it powers a whole lot of stuff. Where are you putting the block? ACC power wires are grey and are all over the place.

 

[cblock406]

I'm working on something similar and want to ask what is probably a very stupid question, but I can't wrap my head around it.

Since you are switching the fuse panel, is it necessary to run an additional relay to power the auxiliary lights? It seems redundant since you are switching them at the fuse panel and can run the proper fuses at the panel. I'm sure my thinking is incorrect but I am not sure I understand why.

 

[T4topher]

I'm working on something similar and want to ask what is probably a very stupid question, but I can't wrap my head around it.

Since you are switching the fuse panel, is it necessary to run an additional relay to power the auxiliary lights? It seems redundant since you are switching them at the fuse panel and can run the proper fuses at the panel. I'm sure my thinking is incorrect but I am not sure I understand why.

The only reason to run another set of relays for the lights is incase the switches can’t handle the load of the accessory I think..

 

[phattyduck]

The only reason to run another set of relays for the lights is incase the switches can’t handle the load of the accessory I think..

Yes, and even if it can 'handle' the load, it is better for the switch contacts to run low current and let a relay handle the higher current switching. Also allows smaller diameter wire runs in/out of the cab and shorter low gauge wire can stay in the engine bay for better power delivery.

-Charlie

 

[cblock406]

The only reason to run another set of relays for the lights is incase the switches can’t handle the load of the accessory I think..

Yes, and even if it can 'handle' the load, it is better for the switch contacts to run low current and let a relay handle the higher current switching. Also allows smaller diameter wire runs in/out of the cab and shorter low gauge wire can stay in the engine bay for better power delivery.

-Charlie

Got it, thanks for the reply guys! That really makes sense about running smaller gauge wire into the cab. I wasn't thinking about the switch handling the load either.

 

[Renderplease]

Well, for that much load, I would prefer to pull direct from the battery positive with an in-line fuse, on a wire sized to the total load. Then run the relay trigger to anywhere on the ACC circuit. The ACC fuse is in the engine bay box, and it powers a whole lot of stuff. Where are you putting the block? ACC power wires are grey and are all over the place.

That makes sense re: relay on the ACC circuit, thanks!

Block will be right by the battery, so it should all be nice and tidy.