Wiring classe ssp600 with anthem avm60

I had classe for years and bought snthem pro pro just because hdmi and atmos for home theatre. It sounds real good but I would prefer classe ssp600 sound for 2 channel. Anyone had wired both or know how so I can play music using classe and for movies anthem avm60. 
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You can connect the ssp600 12v trigger output to the a remote switcher, when you turn on the ssp600, it will automatically connect the ssp600 front left and right channel to the power amp inputs, when the ssp600 is turned off, the switcher will connect the anthem avm60 front left and right channel to the power amp.


ssp600 -------->
                          Switcher -------> power amp 
avm60 -------->