1. If the CD cannot be read, the vehicle host is not compatible with WAV music format. At this time, you can choose to use AUX input to transmit the audio sound and FM transmitter.
2. How to detect the performance of the disc player, you can connect the USB port of the desktop computer or laptop computer and put it into the CD. If you can read the CD content, the performance of the disc player is normal.
3.Please check if your aftermarket car radio supports playing WAV music files.
4.After inserting a CD disc into the CD player, it takes the CD player more than ten seconds to index and decode the .cda format music files on the CD disc.
5.For USB or TYPE-C connection only:Your car factory radio supports playing music files with WAV format.The format of music or other audio files on your discs is .cda.
6.When the CD player is working in MODE1, the buttons and remote control on the machine don't work, you can switch songs through the center screen or the big screen Android navigation.When the CD player is working in MODE2, the buttons and remote control on the machine work.
7.It does not support playback of Blu-ray and vinyl records.
8.For Android Navigation on some models you have to go into the menu to get and select the USB port to recognize the CD player and play music.
9.Make sure you are attempting the initial installation and connection WITHOUT the USB extensions (This is crucial)