REPLACEMENT AUDIO UNIT Remove the battery (-) cable 2.Remove the audio panel Remove the audio mounting bolts(4ea) and the audio(A) 4.Remove the antenna terminal and audio connector 5.The installation is the reverse of the removal Fuses When replacing the fuse of the audio unit, use the specified fuse (7.5A, 10A) If a fuse of higher ampere than the specifications or other conductive material is used, the unit could be damaged [H700] Pin Description Pin Description - - - Left speaker(+) Left speaker(-) 10 Back up(B+) Right speaker(-) 11 ACC - 12 Right speaker(+) - 13 - Ground 14 ILL + [H818 + AMP] Pin Description Pin Description - - - Left speaker(+) Left speaker(-) 10 Back up(B+) Right speaker(-) 11 ACC - 12 Right speaker(+) - 13 - Ground 14 ILL + Cleaning To maintain the best condition, clean the head and capstan periodically 2.When cleaning the tape head and capstan, use a cotton wet by alcohol