The wiring harness on my 05' Elise hadd been cut out..so i am splice wiring a new Kenwood head unit and was wondering which wires were my battery, ignition and other. I figuredd the speaker wires, those were easy. However, the other wires are not solid colors. After hooking up the speakers..i am left with: a solid purple wire, a green wire with a red stripe, and a red wire with a yellow stripe. Which wires go to the radio yellow, red?