Cannot play BMW x3qq music. The reason may be that the connection between the mobile phone and the car failed. Let us introduce how to play QQ music on BMW X3. 1. Open Phone Settings and tap General. 2. Go to the "General Settings" page and click [Carplayonboard] 3. Then click Connect BMW X3. 4. Finally open QQ Music and click Play. Take the 2020 BMW X3 and the 2019 BMW X3 as examples. The audio system used in the BMW X3 is Harman Kardon. Harman Kardon is a very powerful American audio brand. Harman Kardon is a division of Harman International Industries. Harman Kardon is a world-class audio manufacturing expert, specializing in the production of home and car audio. It has many well-known brands such as BL, Becker, AKG, infinity, markLevinson, lexicon, revel, and student. , such as Mercedes-Benz 5600 and BMW 7 Series. Cars such as Land Rover and Range Rover basically use Harman Kardon speakers. Rolls-Royce uses its sub-brands.