Connecting Multiple +12V Wires Into One for Alarm/RS?

I received some help on my install in another thread and it looks like I'll have 4 wires that need +12v for my alarm/remote start. They will all be connected to the +12v wire in the ignition harness. Is there a preferred way of making these connections? Should I combine the 4 wires from the alarm/remote start into one wire and then connect one wire to the ignition harness or is the best way to just splice all four wires onto the one ignition harness wire? Do you guys use a distribution block or something or just solder them together?

Thanks for your input,

Craig

With your Corolla, look for a very thick White or Black wire at the ECM / fuse box under the drivers dash.
That wire can easily supply all the need current for your Viper system. Soldering on to that wire requires
a 140 Watt or better soldering iron and some skill.


If all of the ignition wires are 12 or 14 gauge, I wouldn't "combine" and Viper fused +12V input wires.
I would connect each wire individually. Strip off about 2 inches of insulation from the chosen vehicle
+12V constant supply wire and get about 3 wraps around it with each Viper wire, then solder all 4 wires
in quick sequence. Wrap with quality black electric tape ( Scotch Super 33+ ).

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Soldering is fun!

Thanks kreg357! I'll strip them and attach them individually to the +12V supply. Do you have any recommendations for a soldering iron?

Thanks again for all your assistance!

I have an old WEN "Quick-Hot" soldering gun that outputs 100 and 140 watts but switched over to a
Hakko FX-601 Adjustable Temperature Control Soldering Iron. I use a 3/16" chisel tip and it can
handle almost anything. For solder, I prefer Kester 245 No Clean in .031 diameter.

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Soldering is fun!

I too became annoyed with my Weller 140/100W gun not having enough oats to do large-gauge work. I found a 240/160W (Something like that. It's a brute) Weller online for about $85. It kicks azz on these types of projects.