Supported Models: 1. For MY2018 W205 C-Class and W253 GLC Class for CarPlay and Android Auto activation via OBD2 2. C-Class W205 (SA154 data card code necessary) 3. GLC-Class W253 (SA154 data card code necessary) 4. SA531 COMAND Online (HU5) is not supported. (Note: Software upgrade after 10/19/2018 will block CarPlay OBD activation). Factory version enables one OBD module to activate up to 10 vehicles, which is useful for repair shops. However, this OBD module cannot deactivate when plugged into the car a second time. Operation Procedure: 1. Ignition ON 2. Plug OBD2 module into the cars OBD2 diagnostic port 3. Notice the screen will display HWID 4. Wait until the system reboots DONE Important Notice: 1. The Siri option on your iPhone must remain enabled 2. Use the original charging cable for your iPhone 3. CarPlay is an app within Apples iOS system; only iPhones can use the CarPlay app (iPhone 5 or above supported) 4. Android Auto is an app within the Android system; Android phones can use the Android Auto app (but not all Android phones are supported) Material: Plastic Color: Black Package Contents: 1 x Activation Tool Only the above package content is included; other products are not included. Note: Lighting and different displays may cause slight color variations compared to the actual item. Measurement allows an error of +/- 1-3 cm.