Review on Hizpo 1 Din Android 10 Car Stereo Radio DVD Player for BMW 5 Series E39 & X5 E53 with GPS, Bluetooth, WiFi, 1080P, and Rearview Camera by Wayne Laguna

Installed on 2003 BMW X5 Audio System with Business CD and no DSP. The device turns on but cannot be heard through the BMW speakers. I have sent the seller a message with my problem but have not received a response. After some research on the BMW forums I've come to the conclusion that the red and blue/white wires in the radio harness need to be connected together in order for the stock amp to be powered by 12V. I made a jumper wire to connect these Two wires in the wiring harness and the sound went through. The Android device works great and blends perfectly with the dashboard. Installers should search YouTube for instructions on how to remove the BMW head unit and CD and be prepared to remove the plastic bezel holding the stock radio/CD, but otherwise it's an easy install. It costs $255 to upgrade a 17-year-old radio.