Soldering wires together is very simple talsk, particularly if you get your hands on one of these "cold heat" soldering tools (http://www.ioffer.com/i/Coleman-Cold...-Iron-26310402 ). No waiting for the iron to heat, cools quickly, and the wires fit between the tips. I use it all the time for servo extensions. Its also good for antenna repairs, etc. Definitely shrink tube the joint for a professional finish.

Brad