Car Audio Myth - Certain brands of wiring will "sound" better than others.
Copper is copper is copper. Anybody that pays more for Brand X (which is loved in the audiofool circles) is wasting their money on Company X's advertising budget.
Disclaimer: This is of course assuming equal gauges, lengths, etc...
1999 Ford Contour SVT #900/2760 (SOLD)
2005 Mazda 6s
2003.5 Mazdaspeed Protege
1998 Ford Ranger 4x4