Good wiring practice

[nelmo 257]

My wiring has always been a disaster and the cause of many problems. I'm trying to tidy it up but I have a question...

I am merging various wires into 1 plug but 2 of them are an ignition positive and ground. On the other side of the plug, I have 4 switches (horn, main beam flash etc) that all need, for example, the +ve feed.

How do I best get 4 wires into 1 plug pin? I don't really have space for a distribution box but is there some sort of alternative but smaller ie. a plug with 1 input pin and x outputs, all connected?

I hope this makes sense...

[RichK 1]

A spice from 4 into 1 wire before the plug would be a good way to do it, all sealed up with once crimped with some some glue heatshrink on the splice. If you put all 5 wires (the 'in' wires and the 'out' wires together)  in from the same side and then fold the single 'out' wire over the splice, it will provide strain relief, then glue heatshrink over the top, you may need a small cable tie if really thick.. A U shaped splice would be ideal. You just need to find the right size via either of these three methods - CMA (Circular Mil Area), cross sectional area (mm2), or 'total' AWG  to choose the correct splice. Also make sure that the single cable (of the 4 into 1) is rated high enough for the total current that the 4 devices can draw. 

There are various methods, but the one above will be robust and could be wrapped into the harness.

[knights_templar 125]

Think I know what you are doing.

If you plan it you don't need four wires to one point

Old pics, but hopefully you will get the idea

https://www.dropbox.com/sh/yjxg4x6mkbrqwbe/AADr_DsCoHX7l_08ALMk3cnqa?dl=0

[nelmo 257]

Ah yes, see what you mean - quite clever. Did you solder those sections? 

[knights_templar 125]

yes, it's the predecessor of the factory dash loom