The most common way of transferring data or music files from a mobile or a mp3 to a personal computer is by using a USB cable. The cable is used to pass the data from one device to another; the data can be music files also. Though USB is very common in the personal computer but it not very common in the radio present in the car. There are only a few radios which have these USB facilities.

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.