Tools/materials: vise, scissors, stereo, audio cable, amplifier, DVD.

1, find a vice or scissors to peel off the rubber layer on the outer surface of the audio cable.

2. Generally, copper wire has two colors: brass and silver.

Twist the copper wire a few times by hand to make it harder.

4. There are red and black terminals behind the power amplifier, and the brass color is connected to the red column; Silver and black pillars are connected.

The other end of the audio cable is also connected to the back of the audio. After the efficacy is connected to the audio, input the sound source into the efficacy.

Generally speaking, DVD players can be used as sound sources. You can hear the sound when you turn on the DVD.