Set up vehicle audio.

Setting steps: 1. Before debugging the car audio, you need to restore all additional functions of the car head unit to the factory state, and then set the high, medium and bass to the center, and the left and right balance also need to be set to the center.

2. Then set the volume of the power amplifier to the lowest position, then set the filter setting to OFF, and set the cutoff frequency to the lowest. This is the music listening position.