If you don't want to deal with pulling out the mute wire, you can also just run a jumper wire from the hole above the mute wire. Just strip about 1 to 1-1/2 off the end, and thread it through the hole so several of the wire strands (probably need about 4 or 5 threads) come out the little hole on the back of the plug, then fold them up and over the top of the plug, back towards the front, and plug the harness into the back of the radio. I believe this has been referred to as the redneck bypass, and there is a Youtube video out about it. That's how I did mine, and it works just fine.