Technological developments are fast growing these days. The main drive for these inventions is the demand of the people. Music lovers opt for the systems which have better facilities and reproduce music with good quality. These music systems are installed in automobiles like cars for the people to enjoy music during their drive. The systems are provided with other facilities like ports which allow the connection to players. The systems without these facilities are connected to devices which will provide this feature to the system. This article will discuss on how to hook an usb up to an older car stereo.