6.5inch touch screen. For Opel Astra K. 8.4inch touch screen. 12.3inch touch screen. 4.2inch touch screen. Please check our this model part number with your original part, make sure they are the same part number and appearance. Thank you for your understanding! The new steering wheel module is not directly installed. The new steering wheel module needs to adjust the code and clear the fault code. If the code is incorrect, it will also cause it to fail to work. Inability to work and malfunctions are coding issues. Professional products cannot provide installation instructions. We will highly recommended the Professional installation. Due to different production batches and ex-factory time, the product model you receive may be different from the link, this is not a product quality issue. They function the same. The compatible models in the car compatibility table are for reference only. Please confirm with our customer service before […]