TM731A.6 
(7) Solder a short length (2 or three inches) of stranded, insulated, 28
gauge wire to pin 9 of IC 8.  Pin 9 of IC 8 is the next to last pin of
this single in line pin "IC".   The "last" pin of IC 8, or pin 10, is
located closest to the rear of the rig (closest to you, given the
orientation of the rig that I suggested).
 
(8) Now solder the other end of this wire to the stripped, cut portion
of the red wire that you prepared in step 5 above.
 
That's it!  you now have modified your rig to provide line level,
squelched audio on pin 6 of the microphone connector.
 
     For those technically inclined, you should note that this audio is
leaving an audio amplifier, and going thru both a 1K ohm resistor and a
.1 mfd capacitor before it arrives on pin 6 of the microphone connector.
Thus the signal is DC-blocked and reasonably protected against minor
nastiness that might appear on pin 6.
 
I'd appreciate any feedback from those attempting this modification, tho
of course I must note I cannot take responsibility for any harm that may
come to your radio due to either proper or improper implimentation of
this modification.  I CAN say  honestly that I HAVE done this to my
radio, and it appears to work quite well.
 
 Marty  KC6YKC @ WD6CMU.NOCAL.USA.NA       on packet
        MARTYGOODMAN                       on Delphi
        MARTYGOODMAN@BIOTECHNET.COM        on internet mail
 
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