Right, the cable on my Shure SE215's died and instead of getting another stock cable, I plucked for the FiiO RC-SE1. Unfortunately due to it's size, it didn't pair well with my iPhone and kept popping out all to often. Despite having very limited soldering knowledge, I decided to change the jack to something that would be seated better. I chose Switchcraft 35HDBAU (the standard 3.5mm straight jack), watched a few videos on YouTube and felt that I was ready for the task. Without thinking too much, I cut off the old jack and realised that all the wires are actually braided and none of them are colour coded. Now I have a cable with 8 strands (which all look exactly the same to me) and no idea how I'm supposed to know which is left, right and ground. Could anyone shed some light on the solution?
Also, a friend said that he had done some guitar cables in the past and said that doing only the left and right is sufficient (while all the videos I had did in fact, solder ground). Is there any truth to what he's saying?
I attached a few pictures and links to better illustrate my issue.
Cable -
http://www.fiio.net/en/products/10
Jack -
http://www.switchcraft.com/productsummary.aspx?Parent=427