Tools/Supplies:
1. soldering iron and solder (rosin core solder should be used, its the stuff used for electronics)
2. Heat Gun
3. Shrink Tubing
4. Wire Strippers
5. Jig for holding wires (Optional)
Start off by stripping 3/8 to 1/2 inch of insulation off each wire and twist the loose strands.
Now take the bare strands of each wire, lay them one on top of the other and twist. This gives you a mechanical connection, the tighter the twist the better. it should look like the pic.
Now we are going to start soldering (i have my iron set on 45watts 35 works fine too, larger gauge wire will require more heat so more watts), apply the heat under the joint, you will notice in the pic that im putting solder on top of the tip of the iron but under the wire. This pool of solder will help with heat transfer.
Next, melt the solder on the wire, not the iron, use the iron to heat the wire hot enough to melt the solder, use the tip of the iron to move the solder around the joint, the solder will follow the heat, apply more solder as needed.
When your finished it should look like this.
Finally shrink tubing and heat gun.
sorry for the blurry pics, hope this helps someone. just remember when you solder you want to heat what your soldering hot enough to melt the solder. so you want to heat up the wire and melt the solder on the wire if you dont the joint will be "cold" and will FAIL.
