There are two ways to connect a mobile phone to a speaker via USB to play music: If you need a U port connection, just use a USB data cable. As long as the mobile phone supports the OTG function, you can use the OTG data cable to connect the mobile phone and the speaker.

One is to directly connect the phone's headphone audio output interface to the phone's audio cable to the Lotus plug and connect it to the audio input of the stereo. This method is inconvenient due to audio cable limitations. The second method is to connect using the Bluetooth function of your mobile phone. The premise is that the speaker must have Bluetooth reception function.

First, open our smartphone and click Settings. Then, enter the settings interface, find the Bluetooth option, click to enter, and turn on the Bluetooth function of the phone. Secondly, search for the Bluetooth name of the car system and click Connect. Again, open the setting options of the car system and click Bluetooth pairing connection.

The output of the Apple mobile phone should be the 5mm interface. For the audio, it depends on the specific machine. For the 5mm input, use a 5mm-5mm audio pair and recording cable to connect. If the input is rca/single-ended lotus plug; use 5mm-2rca audio signal cable to connect.

Connecting the Apple mobile phone navigation to the car audio is the same as connecting the mobile phone music to the car audio. The method is as follows. You only need to turn on the mobile phone navigation, use the car audio to play it, and use both ends to Plug one end of the 5MM audio cable into the headphone jack of the mobile phone and the other end into the AUX interface of the car CD player.