1993 GMC Sonoma Owner's Manual - Page 139
1993 GMC Sonoma Manual
Page 139 highlights
How to Operate Your E T P AM-FM Stereo Audio System . . ... -... F K4309 Thispart tells youhowyour ETR@ AM-FM stereoaudiosystemworks. P WR (Power) The PWR button switchestheradioonand Upper Knob Theupperknobdoesthese It controlsthevolume. clockwise. two things: off. The VOL knob increasesvolumewhenrotated off, pushthe RECALL knob to It tellsyouthetime.(Whentheignitionis display the time.) BAL (Balance) Thecontrol behind theupperknoballowsyou theright and leftspeakers. Lower Knob Turn thelowerknobto to balancethesoundbetween tune in radiostations.Push it to get AM or FM. FADE Thecontrol behind thelowerknobfadesthe rear speakers. sound betweenyourfrontand 3-1 1