you kinda have to braid them together cut and strip then cross in the center and twist to the opposite wires casing solder and tape or heatshrink. make sure you leave the iron on to heat up the wiring while holding the solder on it and the solder will flow in when hot enough. if you are just taping into a wire like a ignition or accesory like you are asking for your remote start strip the wire in the car take a pic tool and poke a hoke in the middle of the wire then stick the other wire in and wrap it around tightly and solder it up and tape it up good.
2000 forest green xlt supercab 3.0 4x4
light tabs with 6" 100 watters
15% tint on the fronts
2 Elemental designs 9kv.3's
clifford matrix 50.5x
soon to come pioneer comps and exhaust
my baby 94 thunderbird 4.6
k&n and custom true dual with dynomax mufflers.
I DO CUSTOM FIBERGLASSING.