Well who would have guessed, the purple wire is the ignition wire, Crazy germans. I didnt even test that wire because i thought it was just a speaker wire. But now iv got some new problems. When just the left speakers are hooked in everything works fine, but if i have the right ones hooked in, after like 20 seconds the sound cuts out completly untill i remove the right speakers. To fix that problem, im just putting in all new wiring for the speaker (stupid common ground system). But also, my amp will not turn on. The amp turn on wire is putting out 12v at head unit, but nothing at the amp in the trunk. Iv checked for rips in the insulation and found none. Also the power wire running from the battery puts out 12v at battery, but at amp puts out like .06v. Anyone know the number of a good priest that can get the evil electrical demons out of my car?