Review on 🔊 Enhance Sound Quality: Metra 72-4568 Speaker Harness for GM Vehicles by Justin Albright

So I had some good 16 AWG wire connected directly to my aftermarket speakers. They were so powerful but there was so much bass the wires didn't hold up so I bought them to use the ends to fit snugly around my speakers. I connected the wires and connected them directly to my 16 AWG wires and then to the speakers. Now my speakers sound like garbage. I'm losing the head I had before and the speakers sound flat just by adding this cable. I lost half the quality of my speakers with these wires. I recommend never using these cables if you like good sound. I'm going back to how I had them before but find a better way to attach them to the speakers because the sound I lost with those wires is too much.