Am I reading the datasheet correctly in assuming these pin connections:
VCC <-> 3.3V
GND <-> GND
1-COM <-> GND
2-COM <-> GND
2Y0 <-> Audio Source
2Y1 <-> Audio Source
1Y0 <-> Audio Receiver
1Y1 <-> Audio Receiver
INH <-> GND
B <-> GND
A <-> GND
This will route the audio from 2Y0 to 1Y0, and the max peak to peak voltage that can be switched is 5.5V, with the MIN of the waveform at GND.