The PAC RP5-GM31 All-in-One Steering Wheel Control Interface is an innovative radio replacement system. It comes pre-loaded with amplifier retention and SWC software navigation-based output signals. This device can be quickly updated if needed from the PAC website by using a PAC-up universal serial bus adapter. It retains the factory installed amplified radio system, OEM safety information and convenience features. The PAC radio interface is specifically designed for General Motor vehicles with Onstar systems. It also keeps your vehicle data bus intact for service and emission testing. This auto accessory has data-controlled rap accessory output and electronic brake status output wires. There are other data-controlled output connections to navigate the radio and speed of your car. The radio replacement interface can help you save time and money during installation.