Wiring harness and decoding part: Wiring harness is used to meet the standard pin definition of car audio, car navigation, common public car Android solutions For the car standard design, without cutting any wires, plug to plug type simple installation Products after of the electrical performance and other indicators of testing and inspection For the harness with CANbus protocol box, you may need to enter the factory settings of Android host to select the corresponding CANbus and model. It is recommended to update to the latest MCU. Car Radio Fascias For 4 A8 2019-2023 CANBus:Raise Screen size:10 inches Applicability: it is used to adapt the models in the list of compatible models to Android large screen intelligent car multimedia navigation audio. With the special wiring harness in the kit, it can easily replace the car radio audio system Design: 1:1 model design with the car radio installation part, complete modification kit Drive Direction:Left-hand Drive Color:Black Material:plastic Package Contents: 1 * Car Radio Fascia Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.