DPSM SuB Addition Question
 

So i have a 2006 JCW with factory installed DPSM which has been working great for me, i haven't had an problems with it and love the highs and the good lows. I wanna add a single 12 inch sub in order to achieve that Kick and punch that i really enjoy. I dont wanna have to change head units, i have a DICE setup for my BT, AUX, IPOD... and that all working great also. So now the question is, how to get the signal for the amplifier! Ive done a little browsing and seen people using adapters for the HK systems, but i have the DPSM... I was going to ask if anyone could tell me how and where to hook in one of the PAC 2 channel line out converters so i could use that for the RCA's

I know how to wire subs and such, just never installed a sub in a stock head unit system.

Thanks!

This is the PAC unit i was looking at: