I don't know about Skyview-specific, but you could always take the audio alert output of your CO monitor and plug it into one of the audio inputs on your audio panel.
I have the Guardian Avionics 353 (http://www.guardianavionics.com/353_101.html) monitor. I connected the CO2 alert contact output (pin 4) to a SKYVIEW general purpose input pin. I configured the EMS to displays a red alert on the EMS page if the CO2 Guardian gives an alarm indication. When I push the test button on the 353 it gives me an audio/visual alert on the SKYVIEW in addition to it's own audio/visual alert. It works very well.