After lookin in my trunk i realized that the person i bought my car from had already had an amp and had the wiring to it. I know that it was an amp because i knew the person i bought it from. The wires are there and i saw them run through the car. I didn't pop the hood to see if they were still connected, but i do remember touching the end of the wire. figured i would have gotten shocked?? Do you guys think the wire is safe to use. it's only about a year old. this is my first car and first system so if i don't use these wires how can i redo it? thanks