I'd like to know what material the bottom wire is made of. I'm pretty sure the top one is copper, but the bottom wire is silver in color. Could it be aluminum or can copper wires come in silver color? Both of the wires are 24 awg but the one on the top is single stranded and the bottom one is multi-stranded. Will i be able to solder them together? [PLAIN]http://img59.imageshack.us/img59/4231/img01521.jpg [Broken] Thanks !!!