Reply to S4 deck c or d output to laptop audio out, aggregate device?

Hey djtt, quick question for you.
I want to have a kick loop in deck c or d that is playing in time to whatever is coming out of the other decks.
I want a,b, and one other deck coming out of the stereo out and the remaining deck to come out of my Macbook pros 1/8th inch output. This is to send side chain audio to various other effects.

Is this possible using Macs aggregate audio device? Thank you!