I'm guessing this thread belongs here...
I'm sure most of us have seen Monster cables at Best Buy and the high price tag they carry. This tutorial shows you how to make your own coax Monster cables:
If you do not want to read the tutorial than you can download the episode that goes along with it:
Personally I've watched the video and it's great. It spoonfeeds you all all the information and tells you the "why" (which I like). You can use this for your car and home. Hope this helps.