I tried to do almost the same thing and had the same problem.

The thing that I found out after the mistake was made was that the wires are crossover in the cable, not straight through.


If I were you, I would just suck up and buy the hardwiring kit.

But if you want to continue to try and make your own hardwiring kit, I would take a look at this guide (if you haven't already):

http://www.tubdum.com/2006/passport-...in-bmw-m3-e36/