I'm curious about this as well. I recently installed (if you can call plugging something in installing) a Neo Pro Link - PODNISV2. I'm trying to add a 4 channel amp and some DLS comps to the system with a PAC AOEM-NIS2. The problem is I can't remember which plugs on the PODNISV2 are pass through. WTF, I guess it's only 40 bucks to find out for sure....