Sorry everyone for the repeated responses but I was having some
trouble posting.
I could not find a link on the net for a schematic or data sheets for
that SBX1637-01/11 but I have the data sheets in front of me in
paperback form.

Pin 1=VCC (+9v)
Pin 2=mute (supresses the output of pins 9,10, & 11,operates at H
level,2v to vcc
Pin 3=F SAP
Pin 4=forced
Pin 5=MSO=mode control switch
Pin 6=MS1=mode control switch
Pin 7=SAP IND=sap indicator driver
Pin 8=ST IND=stereo indicator driver
Pin 9=L+R out=left & right output
Pin 10=L out=left output
Pin 11=R out=right output
Pin 12=MPX in
Pin 14=TP1=test pin
Pin 15=TP2=test pin
Pin 16=GND