Practically every electrical or electronic connector has its own dedicated terminal, and needs a special crimper and insertion or removal tool. You'd need a separate tool box just for them, but it's impossible to do a professional looking job without them. If corrosion could be a problem, there is mil spec wire that is pre tinned. Soldering is supposed to be suboptimal, since it stiffens the wire. A bit of dielectric gel after crimping, like D 10 is also good to prevent corrosion.
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