Why is there no sound when playing music after successful Bluetooth connection in Cruze?

[McOmar]

The reasons for no sound when playing music after successful Bluetooth connection in Cruze are as follows: 1. Car volume not turned on: The volume of the car's multimedia system is not activated. 2. Phone volume not turned on: The phone's volume is not activated. 3. Incompatibility: The phone and car computer are not matched. 4. Interference: Bluetooth signal interference. Information about Bluetooth is as follows: 1. Bluetooth is a global standard for wireless data and voice communication, based on low-cost short-range wireless connections, creating a communication environment for fixed and mobile devices through a special short-range wireless technology connection. 2. Connection range: Bluetooth enables some portable mobile devices and computer devices to connect to the internet without cables and allows wireless internet access.