Replacing the wire could definitely change the sound of the speakers depending on what you use. I just think the factory wires coming from the stock amp were decent enough to reuse.
I've been doing audio for a long time and it's my profession. When I did car audio I was sponsored by both Scoche and Monster for wiring over the years. I've heard the differences. I personally think quality rca's and proper routing of the wires is more important. But that's just my opinion. Besides I was too lazy to fish 14GA through the door molex and boot.
