GM12-AUX auxilary input converter is designed to convert the Cd changer port of the Isuzu Oem radio (with Cd changer controls) into auxiliary input. Devices such as Xm Satellite Radio, Vcr, MP3, Video Game Systems, and Dvd can be added to the Isuzu Oem radio without FM modulation.Dpx technology maintains full function of all factory built-in steering wheel and rear seat controls.