XKIT42 Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

Excellent wiring!

This is much higher quality than I'm used to working with. The jacket is super soft and flexible, making it easy to route through the cabin. The individual wire strands are extremely thin, and it took some practice to get a clean strip without cutting through too many wire strands, but they give you plenty of power/speaker wire to mess around with and learn what works best for you. My only real complaint is that I wish they included ferrules in the kit, but that was a cheap purchace to get for myself.