Monoblock amp with DVC subs

Question

Hi I have the most retardedly confusing question that's ever been posed so bare with me here. I have a performance technique ICMB-DIGITAL and I just blew out both my subs. I have a 99 lexus gs 300 which had a stock sub. I want to run a KICKER 07C104 free air in the place of the stock sub, but then I want to try and run a KICKER CVX12 in a box in the trunk just to add some thunder. Is this even possible? My next question is why does a monoblock amp have 2 sets of terminals? Is it internally bridged or something?