Can someone help me, just bought 2000 Jetta. ABS light and brake light come on and blink sometimes, when I stop car and put it in neutral it will stall. First time ABS light blinks radio volume will turn off and dash lights will blink also. Code P0668 came up on diagnostics, when I brought it to place that sold it to me. Any one have same type of problems it seems electrical to me, but I don't know.