1993 GMC Safari Owner's Manual - Page 137
1993 GMC Safari Manual
Page 137 highlights
How io Operate Your E T P AM Radio K4308 Thisparttellsyouhowyour ETR@ AM radio works. The Upper Knob Theupperknobdoesthesethreethings: Itcontrolsthevolume. It lets youseewhatstationyouhave.(Whentheradioison,pushthe knob to display the station.) It tells youthetime.(Whentheignitionis the time.) off, pushtheknob to display left and Thecontrol behind theupperknobmovesthesoundbetweenthe right speakers. The Lower Knob Turn thelowerknobtochooseradiostations. lone Levers Two levers control the tone BASS-Slidethisleverup TREBLE-Slidethisleverup of your radio. to hearmorebass. to hearmoretreble. If astation is weakandnoisy, Adjusttheselevers to giveapleasingsound. moveTREBLEdowntoreducethenoise. 3-1 1