I use to make these a few years ago, sold them for something like $40 a set. I had request coming in faster than I could make them. Then a got a new job, move to a new home and basically that was the end of me making them... but the request still roll in. So here is the crash course on what I was doing to make them. When done correctly, these will work better than the OE tools at the VW/Audi dealer...
Since you are working with wiring, then maybe you need OEM Butt Connectors, I sell these:
http://www.4130-products.com/crimp/
Handles:
http://www.pjtool.com/needle-file-handle.html
Thank you.
