Hello all, new to the group/forum but I am looking for some assistance. I am about to purchase a 12” subwoofer in a enclosed/ported box. It will be on its own 1200 watt mono block amp. Would anyone have a step by step process of how to add it to the stock Wet Sounds system in the 2020 Makai? We have the two 10” tower speakers and the open air sub under the driver console. I would really like to do this myself, and not have to take it to a audio shop. Thanks in advance!! 👍🏼